gpu: Introduce GpuInit.

content/gpu/gpu_child_thread.h

Index: content/gpu/gpu_child_thread.h
diff --git a/content/gpu/gpu_child_thread.h b/content/gpu/gpu_child_thread.h
index 70aace9fac776dfc74e0de1823d351f58d867312..a9208170ea5d7e5030d810fb5c67b8e940f62bd5 100644
--- a/content/gpu/gpu_child_thread.h
+++ b/content/gpu/gpu_child_thread.h
@@ -25,6 +25,7 @@
 #include "gpu/ipc/service/gpu_channel_manager.h"
 #include "gpu/ipc/service/gpu_channel_manager_delegate.h"
 #include "gpu/ipc/service/gpu_config.h"
+#include "gpu/ipc/service/gpu_init_delegate.h"
 #include "gpu/ipc/service/x_util.h"
 #include "mojo/public/cpp/bindings/binding_set.h"
 #include "services/shell/public/interfaces/service_factory.mojom.h"
@@ -56,12 +57,10 @@ class GpuChildThread : public ChildThreadImpl,
                        public gpu::GpuChannelManagerDelegate,
                        public base::FieldTrialList::Observer {
  public:
-  typedef std::queue<IPC::Message*> DeferredMessages;
-
   GpuChildThread(gpu::GpuWatchdogThread* gpu_watchdog_thread,
                  bool dead_on_arrival,
                  const gpu::GPUInfo& gpu_info,
-                 const DeferredMessages& deferred_messages,
+                 std::vector<gpu::GpuInitLogMessage> deferred_messages,
                  gpu::GpuMemoryBufferFactory* gpu_memory_buffer_factory);
 
   GpuChildThread(const gpu::GpuPreferences& gpu_preferences,
@@ -156,7 +155,7 @@ class GpuChildThread : public ChildThreadImpl,
   gpu::GPUInfo gpu_info_;
 
   // Error messages collected in gpu_main() before the thread is created.
-  DeferredMessages deferred_messages_;
+  std::vector<gpu::GpuInitLogMessage> deferred_messages_;
 
   // Whether the GPU thread is running in the browser process.
   bool in_browser_process_;