Remove SW rendering path code from BrowserPlugin.

content/browser/frame_host/render_widget_host_view_guest.cc

 // 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.
 
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "content/browser/browser_plugin/browser_plugin_guest.h"
 #include "content/browser/frame_host/render_widget_host_view_guest.h"
@@ skipping 149 matching lines @@
     const base::string16& tooltip_text) {
   platform_view_->SetTooltipText(tooltip_text);
 }
 
 void RenderWidgetHostViewGuest::AcceleratedSurfaceBuffersSwapped(
     const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params,
     int gpu_host_id) {
   if (!guest_)
     return;
 
-  // If accelerated surface buffers are getting swapped then we're not using
-  // the software path.
-  guest_->clear_damage_buffer();
   FrameMsg_BuffersSwapped_Params guest_params;
   guest_params.size = params.size;
   guest_params.mailbox = params.mailbox;
   guest_params.gpu_route_id = params.route_id;
   guest_params.gpu_host_id = gpu_host_id;
   guest_->SendMessageToEmbedder(
       new BrowserPluginMsg_BuffersSwapped(guest_->instance_id(),
                                           guest_params));
 }
 
 void RenderWidgetHostViewGuest::AcceleratedSurfacePostSubBuffer(
     const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params,
     int gpu_host_id) {
   NOTREACHED();
 }
 
 void RenderWidgetHostViewGuest::OnSwapCompositorFrame(
     uint32 output_surface_id,
     scoped_ptr<cc::CompositorFrame> frame) {
   if (!guest_)
     return;
 
-  guest_->clear_damage_buffer();
-
   if (!guest_->attached()) {
     // If the guest doesn't have an embedder then there's nothing to give the
     // the frame to.
     return;
   }
   base::SharedMemoryHandle software_frame_handle =
       base::SharedMemory::NULLHandle();
   if (frame->software_frame_data) {
     cc::SoftwareFrameData* frame_data = frame->software_frame_data.get();
     scoped_ptr<cc::SharedBitmap> bitmap =
@@ skipping 378 matching lines @@
       ++g_it) {
     ForwardGestureEventToRenderer(*g_it);
   }
 }
 
 SkBitmap::Config RenderWidgetHostViewGuest::PreferredReadbackFormat() {
   return SkBitmap::kARGB_8888_Config;
 }
 
 }  // namespace content