Implement the content/renderer and content/browser part of the Device Motion API.

content/renderer/renderer_webkitplatformsupport_impl.cc

Index: content/renderer/renderer_webkitplatformsupport_impl.cc
diff --git a/content/renderer/renderer_webkitplatformsupport_impl.cc b/content/renderer/renderer_webkitplatformsupport_impl.cc
index 12dfa0a49a0bd9006dbbc43eddd3eb8abdd55620..7a353b135c2da16d90b9f953e0f1a982ec0faa16 100644
--- a/content/renderer/renderer_webkitplatformsupport_impl.cc
+++ b/content/renderer/renderer_webkitplatformsupport_impl.cc
@@ -26,6 +26,7 @@
 #include "content/public/common/content_switches.h"
 #include "content/public/common/gpu_info.h"
 #include "content/public/renderer/content_renderer_client.h"
+#include "content/renderer/device_orientation/device_motion_event_pump.h"
 #include "content/renderer/dom_storage/webstoragenamespace_impl.h"
 #include "content/renderer/gamepad_shared_memory_reader.h"
 #include "content/renderer/hyphenator/hyphenator.h"
@@ -923,4 +924,13 @@ WebKit::WebGraphicsContext3DProvider* RendererWebKitPlatformSupportImpl::
       shared_offscreen_context_);
 }
 
+//------------------------------------------------------------------------------
+
+void RendererWebKitPlatformSupportImpl::setDeviceMotionListener(
+    WebKit::WebDeviceMotionListener* listener) {
+  if (!device_motion_event_pump_)
+    device_motion_event_pump_.reset(new DeviceMotionEventPump);
+  device_motion_event_pump_->setListener(listener);
+}
+
 }  // namespace content