Implement the Blink part of the Device Motion API.

Source/WebKit/chromium/src/WebViewImpl.cpp

Index: Source/WebKit/chromium/src/WebViewImpl.cpp
diff --git a/Source/WebKit/chromium/src/WebViewImpl.cpp b/Source/WebKit/chromium/src/WebViewImpl.cpp
index 36f87421be3b01f6714dc1702d7b84ef073366e0..6843a9d768eeae37a1588924270b2f1eb8b2ae0c 100644
--- a/Source/WebKit/chromium/src/WebViewImpl.cpp
+++ b/Source/WebKit/chromium/src/WebViewImpl.cpp
@@ -38,6 +38,7 @@
 #include "CompositionUnderlineVectorBuilder.h"
 #include "ContextFeaturesClientImpl.h"
 #include "DeviceOrientationClientProxy.h"
+#include "modules/device_orientation/DeviceMotionController.h"

[abarth-chromium, 2013/04/29 20:32:20]

Please put this include in alphabetical order.

[timvolodine, 2013/04/30 12:40:18]

Done.

 #include "GeolocationClientProxy.h"
 #include "GeolocationController.h"
 #include "GraphicsLayerFactoryChromium.h"
@@ -481,6 +482,7 @@ WebViewImpl::WebViewImpl(WebViewClient* client)
 #endif
 
     provideContextFeaturesTo(m_page.get(), m_featureSwitchClient.get());
+    provideDeviceMotionTo(m_page.get());

[abarth-chromium, 2013/04/29 20:32:20]

This shouldn't be needed.  This sort of thing is only needed when you need to
wire up a client, but there's not client here.

(Really most of these features that use clients should be refactored to not use
clients also.)

[timvolodine, 2013/04/30 12:40:18]

DeviceMotionController is still a supplement of a page because we need to know
the page it is active at for caching purposes (PageCache.cpp). Otherwise we will
likely need to change the interface of DOMWindow.

     provideDeviceOrientationTo(m_page.get(), m_deviceOrientationClientProxy.get());
     provideGeolocationTo(m_page.get(), m_geolocationClientProxy.get());
     m_geolocationClientProxy->setController(GeolocationController::from(m_page.get()));