[Device Service] Eliminate content::ScreenOrientationObserver.

content/renderer/renderer_blink_platform_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/renderer_blink_platform_impl.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 48 matching lines @@
 #include "content/renderer/media/audio_device_factory.h"
 #include "content/renderer/media/renderer_webaudiodevice_impl.h"
 #include "content/renderer/media/renderer_webmidiaccessor_impl.h"
 #include "content/renderer/media_capture_from_element/canvas_capture_handler.h"
 #include "content/renderer/media_capture_from_element/html_audio_element_capturer_source.h"
 #include "content/renderer/media_capture_from_element/html_video_element_capturer_source.h"
 #include "content/renderer/media_recorder/media_recorder_handler.h"
 #include "content/renderer/mojo/blink_interface_provider_impl.h"
 #include "content/renderer/render_thread_impl.h"
 #include "content/renderer/renderer_clipboard_delegate.h"
-#include "content/renderer/screen_orientation/screen_orientation_observer.h"
 #include "content/renderer/webclipboard_impl.h"
 #include "content/renderer/webgraphicscontext3d_provider_impl.h"
 #include "content/renderer/webpublicsuffixlist_impl.h"
 #include "gpu/command_buffer/client/gles2_interface.h"
 #include "gpu/config/gpu_info.h"
 #include "gpu/ipc/client/gpu_channel_host.h"
 #include "gpu/ipc/common/gpu_stream_constants.h"
 #include "ipc/ipc_sync_message_filter.h"
 #include "media/audio/audio_output_device.h"
 #include "media/blink/webcontentdecryptionmodule_impl.h"
@@ skipping 1045 matching lines @@
     case blink::WebPlatformEventTypeDeviceMotion:
       return base::MakeUnique<DeviceMotionEventPump>(thread);
     case blink::WebPlatformEventTypeDeviceOrientation:
       return base::MakeUnique<DeviceOrientationEventPump>(thread);
     case blink::WebPlatformEventTypeDeviceOrientationAbsolute:
       return base::MakeUnique<DeviceOrientationAbsoluteEventPump>(thread);
     case blink::WebPlatformEventTypeDeviceLight:
       return base::MakeUnique<DeviceLightEventPump>(thread);
     case blink::WebPlatformEventTypeGamepad:
       return base::MakeUnique<GamepadSharedMemoryReader>(thread);
-    case blink::WebPlatformEventTypeScreenOrientation:
-      return base::MakeUnique<ScreenOrientationObserver>();
     default:
       // A default statement is required to prevent compilation errors when
       // Blink adds a new type.
       DVLOG(1) << "RendererBlinkPlatformImpl::startListening() with "
                   "unknown type.";
   }
 
   return NULL;
 }
 
@@ skipping 112 matching lines @@
 //------------------------------------------------------------------------------
 void RendererBlinkPlatformImpl::requestPurgeMemory() {
   // TODO(tasak|bashi): We should use ChildMemoryCoordinator here, but
   // ChildMemoryCoordinator isn't always available as it's only initialized
   // when kMemoryCoordinatorV0 is enabled.
   // Use ChildMemoryCoordinator when memory coordinator is always enabled.
   base::MemoryCoordinatorClientRegistry::GetInstance()->PurgeMemory();
 }
 
 }  // namespace content