Moved creation of GPU command buffer shared memory into the browser process....

ppapi/proxy/ppb_context_3d_proxy.cc

 // Copyright (c) 2011 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 "ppapi/proxy/ppb_context_3d_proxy.h"
 
 #include "base/hash_tables.h"
 #include "gpu/command_buffer/client/gles2_cmd_helper.h"
 #include "gpu/command_buffer/client/gles2_implementation.h"
 #include "ppapi/c/pp_errors.h"
@@ skipping 159 matching lines @@
 }  // namespace
 
 class PepperCommandBuffer : public gpu::CommandBuffer {
  public:
   PepperCommandBuffer(const HostResource& resource,
                       PluginDispatcher* dispatcher);
   virtual ~PepperCommandBuffer();
 
   // CommandBuffer implementation:
   virtual bool Initialize(int32 size);
+  virtual bool Initialize(base::SharedMemory* buffer, int32 size);
   virtual gpu::Buffer GetRingBuffer();
   virtual State GetState();
   virtual void Flush(int32 put_offset);
   virtual State FlushSync(int32 put_offset);
   virtual void SetGetOffset(int32 get_offset);
   virtual int32 CreateTransferBuffer(size_t size);
   virtual int32 RegisterTransferBuffer(base::SharedMemory* shared_memory,
                                        size_t size);
   virtual void DestroyTransferBuffer(int32 id);
   virtual gpu::Buffer GetTransferBuffer(int32 handle);
@@ skipping 51 matching lines @@
       num_entries_ = size / sizeof(gpu::CommandBufferEntry);
       return true;
     }
 
     ring_buffer_.reset();
   }
 
   return false;
 }
 
+bool PepperCommandBuffer::Initialize(base::SharedMemory* buffer, int32 size) {
+  // Not implemented in proxy.
+  NOTREACHED();
+  return false;
+}
+
 gpu::Buffer PepperCommandBuffer::GetRingBuffer() {
   // Return locally cached ring buffer.
   gpu::Buffer buffer;
   buffer.ptr = ring_buffer_->memory();
   buffer.size = num_entries_ * sizeof(gpu::CommandBufferEntry);
   buffer.shared_memory = ring_buffer_.get();
   return buffer;
 }
 
 gpu::CommandBuffer::State PepperCommandBuffer::GetState() {
@@ skipping 339 matching lines @@
                                                    &shm_handle,
                                                    &shm_size)) {
     return;
   }
   *transfer_buffer = TransportSHMHandleFromInt(dispatcher(), shm_handle);
   *size = shm_size;
 }
 
 }  // namespace proxy
 }  // namespace pp