Add support for interstitial pages on android.

content/browser/renderer_host/render_widget_host_view_android.cc

 // Copyright (c) 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.
 
 #include "content/browser/renderer_host/render_widget_host_view_android.h"
 
 #include <android/bitmap.h>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 212 matching lines @@
 
   return content_view_core_->HasFocus();
 }
 
 bool RenderWidgetHostViewAndroid::IsSurfaceAvailableForCopy() const {
   NOTIMPLEMENTED();
   return false;
 }
 
 void RenderWidgetHostViewAndroid::Show() {
+  if (content_view_core_) {
+    host_->AttachLayer(texture_layer_->layer());
+    is_hidden_ = false;
+  }
+
   texture_layer_->layer()->setDrawsContent(true);
 }
 
 void RenderWidgetHostViewAndroid::Hide() {
+  is_hidden_ = true;
+
   texture_layer_->layer()->setDrawsContent(false);
 }
 
 bool RenderWidgetHostViewAndroid::IsShowing() {
   return !is_hidden_;
 }
 
 gfx::Rect RenderWidgetHostViewAndroid::GetViewBounds() const {
   gfx::Size bounds = DrawDelegateImpl::GetInstance()->GetBounds();
   if (!bounds.IsEmpty())
@@ skipping 319 matching lines @@
 // RenderWidgetHostView, public:
 
 // static
 RenderWidgetHostView*
 RenderWidgetHostView::CreateViewForWidget(RenderWidgetHost* widget) {
   RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(widget);
   return new RenderWidgetHostViewAndroid(rwhi, NULL);
 }
 
 } // namespace content