[Android] Support unfocusable container views.

content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java

 // Copyright 2012 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.content.browser;
 
 import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.app.SearchManager;
 import android.content.ClipboardManager;
@@ skipping 2346 matching lines @@
     public void attachImeAdapter() {
         if (mImeAdapter != null && mNativeContentViewCore != 0) {
             mImeAdapter.attach(nativeGetNativeImeAdapter(mNativeContentViewCore));
         }
     }
 
     /**
      * @see View#hasFocus()
      */
     @CalledByNative
-    public boolean hasFocus() {
+    private boolean hasFocus() {
+        // If the container view is not focusable, we consider it always focused from
+        // Chromium's point of view.
+        if (!mContainerView.isFocusable()) return true;
         return mContainerView.hasFocus();
     }
 
     /**
      * Checks whether the ContentViewCore can be zoomed in.
      *
      * @return True if the ContentViewCore can be zoomed in.
      */
     // This method uses the term 'zoom' for legacy reasons, but relates
     // to what chrome calls the 'page scale factor'.
@@ skipping 650 matching lines @@
     private native void nativeWasResized(long nativeContentViewCoreImpl);
 
     private native void nativeSetAccessibilityEnabled(
             long nativeContentViewCoreImpl, boolean enabled);
 
     private native void nativeExtractSmartClipData(long nativeContentViewCoreImpl,
             int x, int y, int w, int h);
 
     private native void nativeSetBackgroundOpaque(long nativeContentViewCoreImpl, boolean opaque);
 }