Clean up tinted ImageView subclasses

chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenuItemIcon.java

 // Copyright 2014 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.appmenu;
 
 import android.content.Context;
 import android.util.AttributeSet;
-import android.widget.ImageView;
+import android.widget.Checkable;
+
+import org.chromium.chrome.browser.widget.TintedImageView;
 
 /**
- * A menu icon that supports the checkable state.
+ * A TintedImageView that supports the checkable state.
  */
-public class AppMenuItemIcon extends ImageView {
+public class AppMenuItemIcon extends TintedImageView implements Checkable {
     private static final int[] CHECKED_STATE_SET = new int[] {android.R.attr.state_checked};
     private boolean mCheckedState;
 
     public AppMenuItemIcon(Context context, AttributeSet attrs) {
         super(context, attrs);
     }
 
-    /**
-     * Sets whether the item is checked and refreshes the View if necessary.
-     */
-    protected void setChecked(boolean state) {
+    @Override
+    public void setChecked(boolean state) {
         if (state == mCheckedState) return;
         mCheckedState = state;
         refreshDrawableState();
     }
 
     @Override
-    public void setPressed(boolean state) {
-        // We don't want to highlight the checkbox icon since the parent item is already
-        // highlighted.
-        return;
-    }
-
-    @Override
     public int[] onCreateDrawableState(int extraSpace) {
         final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
         if (mCheckedState) {
             mergeDrawableStates(drawableState, CHECKED_STATE_SET);
         }
         return drawableState;
     }
+
+    @Override
+    public boolean isChecked() {
+        return mCheckedState;
+    }
+
+    @Override
+    public void toggle() {
+        setChecked(!mCheckedState);
+    }
 }