1 files changed, 58 insertions, 0 deletions
diff --git a/chromium/content/browser/compositor/browser_compositor_output_surface_proxy.cc b/chromium/content/browser/compositor/browser_compositor_output_surface_proxy.cc
new file mode 100644
index 00000000000..27fe55a7ea9
--- /dev/null
+++ b/chromium/content/browser/compositor/browser_compositor_output_surface_proxy.cc
@@ -0,0 +1,58 @@
+// 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 "content/browser/compositor/browser_compositor_output_surface_proxy.h"
+
+#include "base/bind.h"
+#include "content/browser/compositor/browser_compositor_output_surface.h"
+#include "content/browser/gpu/browser_gpu_channel_host_factory.h"
+#include "content/common/gpu/gpu_messages.h"
+
+namespace content {
+
+BrowserCompositorOutputSurfaceProxy::BrowserCompositorOutputSurfaceProxy(
+    IDMap<BrowserCompositorOutputSurface>* surface_map)
+    : surface_map_(surface_map),
+      connected_to_gpu_process_host_id_(0) {}
+
+BrowserCompositorOutputSurfaceProxy::~BrowserCompositorOutputSurfaceProxy() {}
+
+void BrowserCompositorOutputSurfaceProxy::ConnectToGpuProcessHost(
+    base::SingleThreadTaskRunner* compositor_thread_task_runner) {
+  BrowserGpuChannelHostFactory* factory =
+      BrowserGpuChannelHostFactory::instance();
+
+  int gpu_process_host_id = factory->GpuProcessHostId();
+  if (connected_to_gpu_process_host_id_ == gpu_process_host_id)
+    return;
+
+  const uint32 kMessagesToFilter[] = { GpuHostMsg_UpdateVSyncParameters::ID };
+  factory->SetHandlerForControlMessages(
+      kMessagesToFilter,
+      arraysize(kMessagesToFilter),
+      base::Bind(&BrowserCompositorOutputSurfaceProxy::
+                     OnMessageReceivedOnCompositorThread,
+                 this),
+      compositor_thread_task_runner);
+  connected_to_gpu_process_host_id_ = gpu_process_host_id;
+}
+
+void BrowserCompositorOutputSurfaceProxy::OnMessageReceivedOnCompositorThread(
+    const IPC::Message& message) {
+  IPC_BEGIN_MESSAGE_MAP(BrowserCompositorOutputSurfaceProxy, message)
+      IPC_MESSAGE_HANDLER(GpuHostMsg_UpdateVSyncParameters,
+                          OnUpdateVSyncParametersOnCompositorThread);
+  IPC_END_MESSAGE_MAP()
+}
+
+void
+BrowserCompositorOutputSurfaceProxy::OnUpdateVSyncParametersOnCompositorThread(
+    int surface_id,
+    base::TimeTicks timebase,
+    base::TimeDelta interval) {
+  BrowserCompositorOutputSurface* surface = surface_map_->Lookup(surface_id);
+  if (surface)
+    surface->OnUpdateVSyncParametersFromGpu(timebase, interval);
+}
+}  // namespace content