content: Add DeletedGpuMemoryBuffer IPC.

content/common/gpu/client/gpu_memory_buffer_impl_linux.cc

 // Copyright 2013 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/common/gpu/client/gpu_memory_buffer_impl.h"
 
 #include "content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.h"
 
 namespace content {
 
@@ skipping 26 matching lines @@
           size, internalformat, usage)) {
     GpuMemoryBufferImplSharedMemory::AllocateSharedMemoryForChildProcess(
         size, internalformat, child_process, callback);
     return;
   }
 
   callback.Run(gfx::GpuMemoryBufferHandle());
 }
 
 // static
+void GpuMemoryBufferImpl::DeletedByChildProcess(
+    gfx::GpuMemoryBufferType type,
+    const gfx::GpuMemoryBufferId& id,
+    base::ProcessHandle child_process) {
+}
+
+// static
 scoped_ptr<GpuMemoryBufferImpl> GpuMemoryBufferImpl::CreateFromHandle(
-    gfx::GpuMemoryBufferHandle handle,
+    const gfx::GpuMemoryBufferHandle& handle,
     const gfx::Size& size,
     unsigned internalformat) {
   switch (handle.type) {
     case gfx::SHARED_MEMORY_BUFFER: {
       scoped_ptr<GpuMemoryBufferImplSharedMemory> buffer(
           new GpuMemoryBufferImplSharedMemory(size, internalformat));
       if (!buffer->InitializeFromHandle(handle))
         return scoped_ptr<GpuMemoryBufferImpl>();
 
       return buffer.PassAs<GpuMemoryBufferImpl>();
     }
     default:
       return scoped_ptr<GpuMemoryBufferImpl>();
   }
 }
 
 }  // namespace content