Pass the overdraw value to the browser w/ frame

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 490 matching lines @@
                                       texture_size_in_layer_);
   ImageTransportFactoryAndroid::GetInstance()->WaitSyncPoint(
       frame->gl_frame_data->sync_point);
   const gfx::Size& texture_size = frame->gl_frame_data->size;
 
   // Calculate the content size.  This should be 0 if the texture_size is 0.
   float dp2px = frame->metadata.device_scale_factor;
   gfx::Vector2dF offset;
   if (texture_size.GetArea() > 0)
     offset = frame->metadata.location_bar_content_translation;
+  offset.set_y(offset.y() + frame->metadata.overdraw_bottom_height);
   gfx::SizeF content_size(texture_size.width() - offset.x() * dp2px,
                           texture_size.height() - offset.y() * dp2px);
-
   BuffersSwapped(frame->gl_frame_data->mailbox,
                  texture_size,
                  content_size,
                  callback);
 
 }
 
 void RenderWidgetHostViewAndroid::AcceleratedSurfaceBuffersSwapped(
     const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params,
     int gpu_host_id) {
@@ skipping 206 matching lines @@
   return cached_background_color_;
 }
 
 void RenderWidgetHostViewAndroid::UpdateFrameInfo(
     const gfx::Vector2dF& scroll_offset,
     float page_scale_factor,
     const gfx::Vector2dF& page_scale_factor_limits,
     const gfx::SizeF& content_size,
     const gfx::SizeF& viewport_size,
     const gfx::Vector2dF& controls_offset,
-    const gfx::Vector2dF& content_offset) {
+    const gfx::Vector2dF& content_offset,
+    float overdraw_bottom_height) {
   if (content_view_core_) {
     // All offsets and sizes are in CSS pixels.
     content_view_core_->UpdateFrameInfo(
         scroll_offset, page_scale_factor, page_scale_factor_limits,
-        content_size, viewport_size, controls_offset, content_offset);
+        content_size, viewport_size, controls_offset, content_offset,
+        overdraw_bottom_height);
   }
 }
 
 void RenderWidgetHostViewAndroid::SetContentViewCore(
     ContentViewCoreImpl* content_view_core) {
   if (content_view_core_ && is_layer_attached_)
     content_view_core_->RemoveLayer(layer_);
 
   content_view_core_ = content_view_core;
   if (content_view_core_ && is_layer_attached_)
@@ skipping 25 matching lines @@
 // RenderWidgetHostView, public:
 
 // static
 RenderWidgetHostView*
 RenderWidgetHostView::CreateViewForWidget(RenderWidgetHost* widget) {
   RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(widget);
   return new RenderWidgetHostViewAndroid(rwhi, NULL);
 }
 
 } // namespace content