[Android] Changes for ToolbarPhone tab switcher animation

Chromium change:
https://github.com/chromium/chromium/commit/81300279c801ec659aa9e9417b0a930db4a06974

[Toolbar] Refactor ToolbarPhone's tab switcher logic
There are three notable changes here:
1. ToolbarPhone is no longer hidden when entering the tab switcher;
   it's only hidden once the transition to the tab switcher finishes.
2. The tab switcher isn't treated as "in overview and showing omniox"
   because a) the omnibox isn't shown in this mode and b) this causes
   visual inconsistencies - e.g. hidden buttons, "search or type web
   address" as the url bar text instead of the url.
3. We suppress captures when entering or in tab switcher mode, since we
   no longer need the capture in this mode.

(cherry picked from commit b6991fa)

Bug: 1360307

android/java/org/chromium/chrome/browser/toolbar/top/BraveTopToolbarCoordinator.java

@@ -6,6 +6,7 @@
 package org.chromium.chrome.browser.toolbar.top;
 
 import android.content.Context;
+import android.view.View;
 import android.view.ViewStub;
 
 import org.chromium.base.Callback;
@@ -128,4 +129,16 @@ public class BraveTopToolbarCoordinator extends TopToolbarCoordinator {
     public ObservableSupplier<Integer> getConstraintsProxy() {
         return mConstraintsProxy;
     }
+
+    @Override
+    public void setTabSwitcherMode(
+            boolean inTabSwitcherMode, boolean showToolbar, boolean delayAnimation) {
+        super.setTabSwitcherMode(inTabSwitcherMode, showToolbar, delayAnimation);
+
+        if (mBraveToolbarLayout instanceof ToolbarPhone) {
+            mBraveToolbarLayout.setVisibility(
+                    ((ToolbarPhone) mBraveToolbarLayout).isInTabSwitcherMode() ? View.INVISIBLE
+                                                                               : View.VISIBLE);
+        }
+    }
 }