Add support for highlighting menu items

chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarManager.java

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser.toolbar;
 
 import android.content.Context;
 import android.content.res.Configuration;
 import android.graphics.drawable.Drawable;
 import android.os.Handler;
@@ skipping 126 matching lines @@
     private final SceneChangeObserver mSceneChangeObserver;
     private final ActionBarDelegate mActionBarDelegate;
     private final ActionModeController mActionModeController;
     private final LoadProgressSimulator mLoadProgressSimulator;
     private final Callback<Boolean> mUrlFocusChangedCallback;
 
     private BrowserStateBrowserControlsVisibilityDelegate mControlsVisibilityDelegate;
     private int mFullscreenFocusToken = FullscreenManager.INVALID_TOKEN;
     private int mFullscreenFindInPageToken = FullscreenManager.INVALID_TOKEN;
     private int mFullscreenMenuToken = FullscreenManager.INVALID_TOKEN;
+    private int mFullscreenHighlightToken = FullscreenManager.INVALID_TOKEN;
 
     private int mPreselectedTabId = Tab.INVALID_TAB_ID;
 
     private boolean mNativeLibraryReady;
     private boolean mTabRestoreCompleted;
 
     private AppMenuButtonHelper mAppMenuButtonHelper;
 
     private HomepageStateListener mHomepageStateListener;
 
@@ skipping 665 matching lines @@
                 if (mControlsVisibilityDelegate == null) return;
                 if (isVisible) {
                     mFullscreenMenuToken =
                             mControlsVisibilityDelegate.showControlsPersistentAndClearOldToken(
                                     mFullscreenMenuToken);
                 } else {
                     mControlsVisibilityDelegate.hideControlsPersistent(mFullscreenMenuToken);
                     mFullscreenMenuToken = FullscreenManager.INVALID_TOKEN;
                 }
             }
+
+            @Override
+            public void onMenuHighlightChanged(boolean highlighting) {
+                mToolbar.setMenuButtonHighlight(highlighting);
+
+                if (mControlsVisibilityDelegate == null) return;
+                if (highlighting) {
+                    mFullscreenHighlightToken =
+                            mControlsVisibilityDelegate.showControlsPersistentAndClearOldToken(
+                                    mFullscreenHighlightToken);
+                } else {
+                    mControlsVisibilityDelegate.hideControlsPersistent(mFullscreenHighlightToken);
+                    mFullscreenHighlightToken = FullscreenManager.INVALID_TOKEN;
+                }
+            }
         });
         mAppMenuButtonHelper = new AppMenuButtonHelper(menuHandler);
         mAppMenuButtonHelper.setOnAppMenuShownListener(new Runnable() {
             @Override
             public void run() {
                 RecordUserAction.record("MobileToolbarShowMenu");
                 mToolbar.onMenuShown();
             }
         });
     }
@@ skipping 426 matching lines @@
         }
 
         /**
          * Cancels simulating load progress.
          */
         public void cancel() {
             mHandler.removeMessages(MSG_ID_UPDATE_PROGRESS);
         }
     }
 }