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 369d514d061b6e7bfc268de31f8846e1ed2e08db..f3fb7cc29158c240d56b81d7a2910dbcd6ae1286 100644
--- a/content/common/gpu/gpu_channel.cc
+++ b/content/common/gpu/gpu_channel.cc
@@ -22,10 +22,12 @@
 #include "content/common/gpu/gpu_channel_manager.h"
 #include "content/common/gpu/gpu_messages.h"
 #include "content/common/gpu/sync_point_manager.h"
+#include "content/common/input/web_input_event_traits.h"

[Ken Russell (switch to Gerrit), 2014/11/17 23:19:32]

Is this #include strictly needed?

[orglofch, 2014/11/20 02:16:21]

Nope, leftover from previously implementation. Removed.

 #include "content/public/common/content_switches.h"
 #include "gpu/command_buffer/common/mailbox.h"
 #include "gpu/command_buffer/service/gpu_scheduler.h"
 #include "gpu/command_buffer/service/mailbox_manager_impl.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"
@@ -818,4 +820,15 @@ uint64 GpuChannel::GetMemoryUsage() {
   return size;
 }
 
+void GpuChannel::HandleUpdateValueState(
+    unsigned int target, const gpu::ValueState& state) {
+  for (StubMap::Iterator<GpuCommandBufferStub> it(&stubs_);

[Ken Russell (switch to Gerrit), 2014/11/17 23:19:32]

It would be nicer if this could more directly target the command buffer stubs
that are interested in this data. It's not worth a lot of complexity though.

[orglofch, 2014/11/20 02:16:21]

Are you thinking of something along the lines of decoder's reporting
subscriptions to the channel? The current implementation takes care of the edge
case where a client subscribes to a target later in the programs execution and
would still like the most recent mouse position (since new information will only
be populated if another event is triggered).

+      !it.IsAtEnd(); it.Advance()) {
+      gpu::gles2::GLES2Decoder* decoder = it.GetCurrentValue()->decoder();
+      if (decoder) {
+        decoder->GetValuebufferManager()->UpdateValueState(target, state);
+      }
+  }
+}
+
 }  // namespace content