Plumb GpuMemoryBuffer allocation to GPU process.

content/browser/gpu/browser_gpu_channel_host_factory.cc

Index: content/browser/gpu/browser_gpu_channel_host_factory.cc
diff --git a/content/browser/gpu/browser_gpu_channel_host_factory.cc b/content/browser/gpu/browser_gpu_channel_host_factory.cc
index 0c43205d3d80b81a60230fba718914d1348b886f..4e69bf314fcfd703fd66affc60f794f671df0492 100644
--- a/content/browser/gpu/browser_gpu_channel_host_factory.cc
+++ b/content/browser/gpu/browser_gpu_channel_host_factory.cc
@@ -469,4 +469,52 @@ void BrowserGpuChannelHostFactory::SetHandlerForControlMessages(
                  filter));
 }
 
+void BrowserGpuChannelHostFactory::AllocateGpuMemoryBufferAsync(
+    const gfx::GpuMemoryBufferParams& params,
+    const AllocateGpuMemoryBufferCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  GetIOLoopProxy()->PostTask(
+      FROM_HERE,
+      base::Bind(
+          &BrowserGpuChannelHostFactory::AllocateGpuMemoryBufferAsyncOnIO,
+          base::Unretained(this),
+          params,
+          callback));
+}
+
+void BrowserGpuChannelHostFactory::AllocateGpuMemoryBufferAsyncOnIO(
+    const gfx::GpuMemoryBufferParams& params,
+    const AllocateGpuMemoryBufferCallback& callback) {
+  GpuProcessHost* host = GpuProcessHost::FromID(gpu_host_id_);
+  if (!host) {
+    GpuMemoryBufferAllocatedAsyncOnIO(callback, gfx::GpuMemoryBufferHandle());
+    return;
+  }
+
+  host->AllocateGpuMemoryBuffer(
+      params,
+      base::Bind(
+          &BrowserGpuChannelHostFactory::GpuMemoryBufferAllocatedAsyncOnIO,
+          callback));
+}
+
+// static
+void BrowserGpuChannelHostFactory::GpuMemoryBufferAllocatedAsyncOnIO(
+    const AllocateGpuMemoryBufferCallback& callback,
+    const gfx::GpuMemoryBufferHandle& handle) {
+  BrowserThread::PostTask(
+      BrowserThread::UI,
+      FROM_HERE,
+      base::Bind(&BrowserGpuChannelHostFactory::GpuMemoryBufferAllocatedAsync,
+                 callback,
+                 handle));
+}
+
+// static
+void BrowserGpuChannelHostFactory::GpuMemoryBufferAllocatedAsync(
+    const AllocateGpuMemoryBufferCallback& callback,
+    const gfx::GpuMemoryBufferHandle& handle) {
+  callback.Run(handle);
+}
+
 }  // namespace content