[GPU] Get GPU process running on the mac...

chrome/renderer/webplugin_delegate_pepper.cc

 // Copyright (c) 2009 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.
 
 #define PEPPER_APIS_ENABLED 1
 
 #include "chrome/renderer/webplugin_delegate_pepper.h"
 
 #include <string>
 #include <vector>
@@ skipping 134 matching lines @@
   SkBitmap new_committed;
   new_committed.setConfig(SkBitmap::kARGB_8888_Config,
                           window_rect_.width(), window_rect.height());
   new_committed.allocPixels();
   committed_bitmap_ = new_committed;
 
   // Forward the new geometry to the nested plugin instance.
   if (nested_delegate_)
     nested_delegate_->UpdateGeometry(window_rect, clip_rect);
 
+#if defined(ENABLE_GPU)
+#if defined(OS_MACOSX)
+  // Send the new window size to the command buffer service code so it
+  // can allocate a new backing store. The handle to the new backing
+  // store is sent back to the browser asynchronously.
+  if (command_buffer_.get()) {
+    command_buffer_->SetWindowSize(window_rect_.width(),
+                                   window_rect_.height());
+  }
+#endif  // OS_MACOSX
+#endif  // ENABLE_GPU
+
   if (!instance())
     return;
 
   // TODO(sehr): do we need all this?
   window_.clipRect.top = clip_rect_.y();
   window_.clipRect.left = clip_rect_.x();
   window_.clipRect.bottom = clip_rect_.y() + clip_rect_.height();
   window_.clipRect.right = clip_rect_.x() + clip_rect_.width();
   window_.height = window_rect_.height();
   window_.width = window_rect_.width();
@@ skipping 178 matching lines @@
 
         // Initialize the 3D context.
         context->reserved = NULL;
         Buffer ring_buffer = command_buffer_->GetRingBuffer();
         context->commandBuffer = ring_buffer.ptr;
         context->commandBufferSize = state.size;
         Synchronize3DContext(context, state);
 
         // Ensure the service knows the window size before rendering anything.
         nested_delegate_->UpdateGeometry(window_rect_, clip_rect_);
+#if defined(OS_MACOSX)
+        command_buffer_->SetWindowSize(window_rect_.width(),
+                                       window_rect_.height());
+#endif  // OS_MACOSX
         // Save the implementation information (the CommandBuffer).
         Device3DImpl* impl = new Device3DImpl;
         impl->command_buffer = command_buffer_.get();
         context->reserved = impl;
 
         return NPERR_NO_ERROR;
       }
     }
 
     command_buffer_.reset();
@@ skipping 333 matching lines @@
 #if defined(ENABLE_GPU)
 void WebPluginDelegatePepper::Synchronize3DContext(
     NPDeviceContext3D* context,
     gpu::CommandBuffer::State state) {
   context->getOffset = state.get_offset;
   context->putOffset = state.put_offset;
   context->token = state.token;
   context->error = static_cast<NPDeviceContext3DError>(state.error);
 }
 #endif  // ENABLE_GPU