[cr149][Android] Changes for removal of unused add|removeMostVisitedTileClickObserver

Chromium changes:
https://chromium.googlesource.com/chromium/src/+/af52507108c6fe0f7cfda495aee2d256194266f2

commit af52507108c6fe0f7cfda495aee2d256194266f2
Author: Xi Han <hanxi@google.com>
Date:   Fri Apr 10 06:44:17 2026 -0700

    [NtpRefacotr] Remove unused add|removeMostVisitedTileClickObserver.

    Bug: 487641528
    Change-Id: Ia160a61ed693ddcd779b6936dfd28be057df2832
    Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7746025
    Reviewed-by: Xinyi Ji <xinyiji@chromium.org>
    Auto-Submit: Xi Han <hanxi@chromium.org>
    Commit-Queue: Xi Han <hanxi@chromium.org>
    Cr-Commit-Position: refs/heads/main@{#1612819}

android/java/org/chromium/chrome/browser/ntp/BraveNewTabPage.java

@@ -17,7 +17,6 @@ import org.chromium.build.annotations.EnsuresNonNull;
 import org.chromium.build.annotations.NullMarked;
 import org.chromium.build.annotations.Nullable;
 import org.chromium.chrome.R;
-import org.chromium.chrome.browser.app.BraveActivity;
 import org.chromium.chrome.browser.browser_controls.BrowserControlsStateProvider;
 import org.chromium.chrome.browser.feed.BraveFeedSurfaceCoordinator;
 import org.chromium.chrome.browser.feed.FeedActionDelegate;
@@ -33,8 +32,6 @@ import org.chromium.chrome.browser.privacy.settings.PrivacyPreferencesManagerImp
 import org.chromium.chrome.browser.profiles.Profile;
 import org.chromium.chrome.browser.search_engines.TemplateUrlServiceFactory;
 import org.chromium.chrome.browser.share.ShareDelegate;
-import org.chromium.chrome.browser.suggestions.tile.Tile;
-import org.chromium.chrome.browser.suggestions.tile.TileSource;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tabmodel.TabModel;
 import org.chromium.chrome.browser.tabmodel.TabModelSelector;
@@ -47,7 +44,6 @@ import org.chromium.chrome.browser.ui.native_page.NativePageHost;
 import org.chromium.components.browser_ui.bottomsheet.BottomSheetController;
 import org.chromium.components.search_engines.TemplateUrlService;
 import org.chromium.content_public.browser.LoadUrlParams;
-import org.chromium.misc_metrics.mojom.MiscAndroidMetrics;
 import org.chromium.ui.base.ActivityResultTracker;
 import org.chromium.ui.base.WindowAndroid;
 import org.chromium.ui.modaldialog.ModalDialogManager;
@@ -55,7 +51,7 @@ import org.chromium.ui.modaldialog.ModalDialogManager;
 import java.util.function.Supplier;
 
 @NullMarked
-public class BraveNewTabPage extends NewTabPage implements NewTabPage.MostVisitedTileClickObserver {
+public class BraveNewTabPage extends NewTabPage {
     // To delete in bytecode, members from parent class will be used instead.
     private @Nullable BrowserControlsStateProvider mBrowserControlsStateProvider;
     private @Nullable NewTabPageLayout mNewTabPageLayout;
@@ -68,8 +64,6 @@ public class BraveNewTabPage extends NewTabPage implements NewTabPage.MostVisite
     private final BottomSheetController mBottomSheetController;
     private final NonNullObservableSupplier<Integer> mTabStripHeightSupplier;
 
-    private final Activity mActivity;
-
     public BraveNewTabPage(
             Activity activity,
             BrowserControlsStateProvider browserControlsStateProvider,
@@ -121,7 +115,6 @@ public class BraveNewTabPage extends NewTabPage implements NewTabPage.MostVisite
                 topInsetProvider,
                 startupMetricsTracker);
 
-        mActivity = activity;
         mBottomSheetController = bottomSheetController;
         mTabStripHeightSupplier = tabStripHeightSupplier;
 
@@ -149,22 +142,6 @@ public class BraveNewTabPage extends NewTabPage implements NewTabPage.MostVisite
                 TemplateUrlServiceFactory.getForProfile(
                         Profile.fromWebContents(assertNonNull(mTab.getWebContents())));
         templateUrlService.addObserver(this);
-
-        addMostVisitedTileClickObserver(this);
-    }
-
-    @Override
-    public void destroy() {
-        removeMostVisitedTileClickObserver(this);
-        super.destroy();
-    }
-
-    @Override
-    public void onMostVisitedTileClicked(Tile tile, Tab tab) {
-        if (!(mActivity instanceof BraveActivity braveActivity)) return;
-        MiscAndroidMetrics miscAndroidMetrics = braveActivity.getMiscAndroidMetrics();
-        if (miscAndroidMetrics == null) return;
-        miscAndroidMetrics.recordTopSiteNavigation(tile.getSource() == TileSource.CUSTOM_LINKS);
     }
 
     @Override

android/java/org/chromium/chrome/browser/ntp/BraveNewTabPageCoordinator.java

@@ -15,8 +15,13 @@ import org.chromium.chrome.browser.app.BraveActivity;
 import org.chromium.chrome.browser.feed.FeedSurfaceScrollDelegate;
 import org.chromium.chrome.browser.lifecycle.ActivityLifecycleDispatcher;
 import org.chromium.chrome.browser.magic_stack.ModuleRegistry;
+import org.chromium.chrome.browser.preloading.AndroidPrerenderManager;
 import org.chromium.chrome.browser.profiles.Profile;
+import org.chromium.chrome.browser.suggestions.mostvisited.MostVisitedSites;
+import org.chromium.chrome.browser.suggestions.tile.Tile;
 import org.chromium.chrome.browser.suggestions.tile.TileGroup;
+import org.chromium.chrome.browser.suggestions.tile.TileSource;
+import org.chromium.chrome.browser.suggestions.tile.tile_edit_dialog.CustomTileEditCoordinator;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tabmodel.TabModelSelector;
 import org.chromium.chrome.browser.tasks.HomeSurfaceTracker;
@@ -24,11 +29,13 @@ import org.chromium.chrome.browser.ui.messages.snackbar.SnackbarManager;
 import org.chromium.chrome.browser.ui.native_page.TouchEnabledDelegate;
 import org.chromium.components.browser_ui.bottomsheet.BottomSheetController;
 import org.chromium.components.browser_ui.widget.displaystyle.UiConfig;
+import org.chromium.misc_metrics.mojom.MiscAndroidMetrics;
 import org.chromium.ui.base.ActivityResultTracker;
 import org.chromium.ui.base.WindowAndroid;
 import org.chromium.ui.modaldialog.ModalDialogManager;
 import org.chromium.url.GURL;
 
+import java.util.List;
 import java.util.function.Supplier;
 
 @NullMarked
@@ -100,7 +107,7 @@ public class BraveNewTabPageCoordinator extends NewTabPageCoordinator {
             ActivityLifecycleDispatcher lifecycleDispatcher,
             Supplier<GURL> composeplateUrlSupplier) {
         super.initialize(
-                tileGroupDelegate,
+                new BraveTileGroupDelegate(tileGroupDelegate, mActivity),
                 searchProviderHasLogo,
                 searchProviderIsGoogle,
                 scrollDelegate,
@@ -111,4 +118,97 @@ public class BraveNewTabPageCoordinator extends NewTabPageCoordinator {
 
         mBraveNewTabPageLayout.initialize(mNewTabPageManager, mActivity, mProfile, mWindowAndroid);
     }
+
+    private static class BraveTileGroupDelegate implements TileGroup.Delegate {
+        private final TileGroup.Delegate mDelegate;
+        private final Activity mActivity;
+
+        BraveTileGroupDelegate(TileGroup.Delegate delegate, Activity activity) {
+            mDelegate = delegate;
+            mActivity = activity;
+        }
+
+        @Override
+        public void openMostVisitedItem(int windowDisposition, Tile tile) {
+            if (mActivity instanceof BraveActivity braveActivity) {
+                MiscAndroidMetrics metrics = braveActivity.getMiscAndroidMetrics();
+                if (metrics != null) {
+                    metrics.recordTopSiteNavigation(tile.getSource() == TileSource.CUSTOM_LINKS);
+                }
+            }
+            mDelegate.openMostVisitedItem(windowDisposition, tile);
+        }
+
+        @Override
+        public void openMostVisitedItemInGroup(int windowDisposition, Tile tile) {
+            mDelegate.openMostVisitedItemInGroup(windowDisposition, tile);
+        }
+
+        @Override
+        public void removeMostVisitedItem(Tile tile) {
+            mDelegate.removeMostVisitedItem(tile);
+        }
+
+        @Override
+        public void setMostVisitedSitesObserver(
+                MostVisitedSites.Observer observer, int maxResults) {
+            mDelegate.setMostVisitedSitesObserver(observer, maxResults);
+        }
+
+        @Override
+        public void onLoadingComplete(List<Tile> tiles) {
+            mDelegate.onLoadingComplete(tiles);
+        }
+
+        @Override
+        public void initAndroidPrerenderManager(AndroidPrerenderManager androidPrerenderManager) {
+            mDelegate.initAndroidPrerenderManager(androidPrerenderManager);
+        }
+
+        @Override
+        public CustomTileEditCoordinator createCustomTileEditCoordinator(
+                @Nullable Tile originalTile) {
+            return mDelegate.createCustomTileEditCoordinator(originalTile);
+        }
+
+        @Override
+        public void showTileUnpinSnackbar(Runnable undoHandler) {
+            mDelegate.showTileUnpinSnackbar(undoHandler);
+        }
+
+        @Override
+        public double getSuggestionScore(GURL url) {
+            return mDelegate.getSuggestionScore(url);
+        }
+
+        @Override
+        public void destroy() {
+            mDelegate.destroy();
+        }
+
+        @Override
+        public boolean addCustomLink(String name, @Nullable GURL url, @Nullable Integer pos) {
+            return mDelegate.addCustomLink(name, url, pos);
+        }
+
+        @Override
+        public boolean assignCustomLink(GURL keyUrl, String name, @Nullable GURL url) {
+            return mDelegate.assignCustomLink(keyUrl, name, url);
+        }
+
+        @Override
+        public boolean deleteCustomLink(GURL keyUrl) {
+            return mDelegate.deleteCustomLink(keyUrl);
+        }
+
+        @Override
+        public boolean hasCustomLink(GURL keyUrl) {
+            return mDelegate.hasCustomLink(keyUrl);
+        }
+
+        @Override
+        public boolean reorderCustomLink(GURL keyUrl, int newPos) {
+            return mDelegate.reorderCustomLink(keyUrl, newPos);
+        }
+    }
 }