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

ui/ozone/platform/dri/ozone_platform_gbm.cc

Index: ui/ozone/platform/dri/ozone_platform_gbm.cc
diff --git a/ui/ozone/platform/dri/ozone_platform_gbm.cc b/ui/ozone/platform/dri/ozone_platform_gbm.cc
index ac3f78a5a1f91d1b92796bf0a97aae07b0a3864a..4e47a289f841630bbcf75ee1ad386f43242a6368 100644
--- a/ui/ozone/platform/dri/ozone_platform_gbm.cc
+++ b/ui/ozone/platform/dri/ozone_platform_gbm.cc
@@ -78,12 +78,6 @@
   virtual CursorFactoryOzone* GetCursorFactoryOzone() OVERRIDE {
     return cursor_factory_ozone_.get();
   }
-  virtual GpuPlatformSupport* GetGpuPlatformSupport() OVERRIDE {
-    return gpu_platform_support_.get()
-  }
-  virtual GpuPlatformSupportHost* GetGpuPlatformSupportHost() OVERRIDE {
-    return gpu_platform_support_host_.get();
-  }
 #if defined(OS_CHROMEOS)
   virtual scoped_ptr<NativeDisplayDelegate> CreateNativeDisplayDelegate()
       OVERRIDE {
@@ -105,8 +99,6 @@
     cursor_factory_ozone_.reset(new CursorFactoryOzone());
     event_factory_ozone_.reset(new EventFactoryEvdev(
         NULL, device_manager_.get()));
-
-    gpu_platform_support_host_.reset(CreateStubGpuPlatformSupportHost());
   }
 
   virtual void InitializeGPU() OVERRIDE {
@@ -118,8 +110,6 @@
         new GbmSurfaceFactory(dri_.get(),
                               surface_generator_->device(),
                               screen_manager_.get()));
-
-    gpu_platform_support_.reset(CreateStubGpuPlatformSupport());
   }
 
  private:
@@ -133,9 +123,6 @@
   scoped_ptr<CursorFactoryOzone> cursor_factory_ozone_;
   scoped_ptr<EventFactoryEvdev> event_factory_ozone_;
 
-  scoped_ptr<GpuPlatformSupport> gpu_platform_support_;
-  scoped_ptr<GpuPlatformSupportHost> gpu_platform_support_host_;
-
   DISALLOW_COPY_AND_ASSIGN(OzonePlatformGbm);
 };