ozone: gpu: Add plumbing for platform-specific gpu messaging

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 01fc786970736c39ede146f1b5e023215a84dd89..b55713a0a0478bbc568129a2f6de07329107dfba 100644
--- a/content/browser/gpu/browser_gpu_channel_host_factory.cc
+++ b/content/browser/gpu/browser_gpu_channel_host_factory.cc
@@ -21,6 +21,10 @@
 #include "ipc/ipc_forwarding_message_filter.h"
 #include "ipc/message_filter.h"
 
+#if defined(USE_OZONE)
+#include "ui/ozone/gpu/gpu_platform_support_host.h"
+#endif
+
 namespace content {
 
 BrowserGpuChannelHostFactory* BrowserGpuChannelHostFactory::instance_ = NULL;
@@ -197,6 +201,9 @@ void BrowserGpuChannelHostFactory::Initialize(bool establish_gpu_channel) {
     instance_->EstablishGpuChannel(CAUSE_FOR_GPU_LAUNCH_BROWSER_STARTUP,
                                    base::Closure());
   }
+#if defined(USE_OZONE)
+  ui::GpuPlatformSupportHost::Initialize();

[alexst (slow to review), 2014/06/16 21:34:23]

Do we need to explicitly init this here? Presumably the ozone platform was
initialized already and this could happen inside that code?

[spang, 2014/06/17 14:47:34]

Actually, our other initializer can't do this because it is a lower level
component. It would be a layering violation.

+#endif
 }
 
 void BrowserGpuChannelHostFactory::Terminate() {