Poll for Display rotation on Android 4.0 and 4.1 when needed.

content/renderer/renderer_webkitplatformsupport_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_webkitplatformsupport_impl.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
@@ skipping 15 matching lines @@
 #include "content/child/web_database_observer_impl.h"
 #include "content/child/webblobregistry_impl.h"
 #include "content/child/webfileutilities_impl.h"
 #include "content/child/webmessageportchannel_impl.h"
 #include "content/common/file_utilities_messages.h"
 #include "content/common/gpu/client/context_provider_command_buffer.h"
 #include "content/common/gpu/client/gpu_channel_host.h"
 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
 #include "content/common/gpu/gpu_process_launch_causes.h"
 #include "content/common/mime_registry_messages.h"
+#include "content/common/screen_orientation_messages.h"
 #include "content/common/view_messages.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/webplugininfo.h"
 #include "content/public/renderer/content_renderer_client.h"
 #include "content/renderer/battery_status/battery_status_dispatcher.h"
 #include "content/renderer/battery_status/fake_battery_status_dispatcher.h"
 #include "content/renderer/device_sensors/device_light_event_pump.h"
 #include "content/renderer/device_sensors/device_motion_event_pump.h"
 #include "content/renderer/device_sensors/device_orientation_event_pump.h"
 #include "content/renderer/dom_storage/webstoragenamespace_impl.h"
@@ skipping 1021 matching lines @@
         static_cast<blink::WebDeviceLightListener*>(listener));
     break;
   case blink::WebPlatformEventBattery:
     SetBatteryStatusListener(
         static_cast<blink::WebBatteryStatusListener*>(listener));
     break;
   case blink::WebPlatformEventGamepad:
     SetGamepadListener(
         static_cast<blink::WebGamepadListener*>(listener));
     break;
+  case blink::WebPlatformEventScreenOrientation:
+    RenderThread::Get()->Send(new ScreenOrientationHostMsg_StartListening());
+    break;
   default:
     // A default statement is required to prevent compilation errors when Blink
     // adds a new type.
     VLOG(1) << "RendererWebKitPlatformSupportImpl::startListening() with "
                "unknown type.";
   }
 }
 
 void RendererWebKitPlatformSupportImpl::stopListening(
     blink::WebPlatformEventType type) {
         switch (type) {
   case blink::WebPlatformEventDeviceMotion:
     SetDeviceMotionListener(0);
     break;
   case blink::WebPlatformEventDeviceOrientation:
     SetDeviceOrientationListener(0);
     break;
   case blink::WebPlatformEventDeviceLight:
     SetDeviceLightListener(0);
     break;
   case blink::WebPlatformEventBattery:
     SetBatteryStatusListener(0);
     break;
   case blink::WebPlatformEventGamepad:
     SetGamepadListener(0);
     break;
+  case blink::WebPlatformEventScreenOrientation:
+    RenderThread::Get()->Send(new ScreenOrientationHostMsg_StopListening());
+    break;
   default:
     // A default statement is required to prevent compilation errors when Blink
     // adds a new type.
     VLOG(1) << "RendererWebKitPlatformSupportImpl::stopListening() with "
                "unknown type.";
   }
 }
 
 void RendererWebKitPlatformSupportImpl::SetDeviceMotionListener(
     blink::WebDeviceMotionListener* listener) {
@@ skipping 92 matching lines @@
 
 //------------------------------------------------------------------------------
 
 // static
 void RendererWebKitPlatformSupportImpl::MockBatteryStatusChangedForTesting(
     const blink::WebBatteryStatus& status) {
   g_test_battery_status_dispatcher.Get().PostBatteryStatusChange(status);
 }
 
 }  // namespace content