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..cd6de068a2634439fac42ad5cd1d6384dbac5fb2 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"
@@ -449,6 +450,8 @@ void GpuChannel::Init(base::MessageLoopProxy* io_message_loop,
   io_message_loop_ = io_message_loop;
   channel_->AddFilter(filter_.get());
 
+  valuebuffer_manager_ = new gpu::gles2::ValuebufferManager();
+
   devtools_gpu_agent_.reset(new DevToolsGpuAgent(this));
 }
 
@@ -576,6 +579,7 @@ CreateCommandBufferResult GpuChannel::CreateViewCommandBuffer(
                                share_group,
                                window,
                                mailbox_manager_.get(),
+                               valuebuffer_manager_.get(),
                                gfx::Size(),
                                disallowed_features_,
                                init_params.attribs,
@@ -734,6 +738,7 @@ void GpuChannel::OnCreateOffscreenCommandBuffer(
       share_group,
       gfx::GLSurfaceHandle(),
       mailbox_manager_.get(),
+      valuebuffer_manager_.get(),
       size,
       disallowed_features_,
       init_params.attribs,
@@ -819,4 +824,9 @@ uint64 GpuChannel::GetMemoryUsage() {
   return size;
 }
 
+void GpuChannel::HandleUpdateValueState(
+    unsigned int target, const gpu::ValueState& state) {
+  valuebuffer_manager_->UpdateValueState(target, state);
+}
+
 }  // namespace content