Add mouse input forwarding to gpu service

content/common/gpu/gpu_channel.cc

Index: content/common/gpu/gpu_channel.cc
diff --git a/content/common/gpu/gpu_channel.cc b/content/common/gpu/gpu_channel.cc
index c89914d46dd6216f686bd03c9575082004dc6bf0..f429d6ddaf880ae8350c92fa625fea25d6821aab 100644
--- a/content/common/gpu/gpu_channel.cc
+++ b/content/common/gpu/gpu_channel.cc
@@ -26,6 +26,7 @@
 #include "gpu/command_buffer/service/gpu_scheduler.h"
 #include "gpu/command_buffer/service/mailbox_manager_impl.h"
 #include "gpu/command_buffer/service/sync_point_manager.h"
+#include "gpu/command_buffer/service/valuebuffer_manager.h"
 #include "ipc/ipc_channel.h"
 #include "ipc/message_filter.h"
 #include "ui/gl/gl_context.h"
@@ -819,4 +820,15 @@ uint64 GpuChannel::GetMemoryUsage() {
   return size;
 }
 
+void GpuChannel::HandleUpdateValueState(
+    unsigned int target, const gpu::ValueState& state) {
+  for (StubMap::Iterator<GpuCommandBufferStub> it(&stubs_);
+      !it.IsAtEnd(); it.Advance()) {
+      gpu::gles2::GLES2Decoder* decoder = it.GetCurrentValue()->decoder();
+      if (decoder) {
+        decoder->GetValuebufferManager()->UpdateValueState(target, state);
+      }
+  }
+}
+
 }  // namespace content