Add canUpdateLayout & canHandleGestureEvent to WebViewClient.

components/plugins/renderer/webview_plugin.cc

 // Copyright 2013 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.
 
 #include "components/plugins/renderer/webview_plugin.h"
 
 #include <stddef.h>
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
@@ skipping 249 matching lines @@
   // Eliminate this once WebView is no longer a WebWidget.
   WebFrameWidget::create(this, web_view_, web_frame);
 }
 
 WebViewPlugin::WebViewHelper::~WebViewHelper() {
   web_view_->close();
 }
 
 bool WebViewPlugin::WebViewHelper::acceptsLoadDrops() { return false; }
 
+bool WebViewPlugin::WebViewHelper::canHandleGestureEvent() {
+  return true;
+}
+
+bool WebViewPlugin::WebViewHelper::canUpdateLayout() {
+  return true;
+}
+
 void WebViewPlugin::WebViewHelper::setToolTipText(
     const WebString& text,
     blink::WebTextDirection hint) {
   if (plugin_->container_)
     plugin_->container_->element().setAttribute("title", text);
 }
 
 void WebViewPlugin::WebViewHelper::startDragging(blink::WebReferrerPolicy,
                                                  const WebDragData&,
                                                  WebDragOperationsMask,
@@ skipping 66 matching lines @@
   if (!delegate_)
     return;
 
   // The delegate may instantiate a new plugin.
   delegate_->OnUnobscuredRectUpdate(gfx::Rect(unobscured_rect));
   // The delegate may have dirtied style and layout of the WebView.
   // See for example the resizePoster function in plugin_poster.html.
   // Run the lifecycle now so that it is clean.
   web_view()->updateAllLifecyclePhases();
 }