WebKit & WebCore part of the device motion implementation using the platform layer.

Source/Platform/chromium/public/Platform.h

Index: Source/Platform/chromium/public/Platform.h
diff --git a/Source/Platform/chromium/public/Platform.h b/Source/Platform/chromium/public/Platform.h
index 2ca26a3d567270b1d7124c4b48b269a9fcd31827..eb838b3a3638703c05da5ccd22fbf23facd96bea 100644
--- a/Source/Platform/chromium/public/Platform.h
+++ b/Source/Platform/chromium/public/Platform.h
@@ -54,6 +54,7 @@ class WebBlobRegistry;
 class WebClipboard;
 class WebCompositorSupport;
 class WebCookieJar;
+class WebDeviceMotionReader;
 class WebDiscardableMemory;
 class WebFileSystem;
 class WebFileUtilities;
@@ -511,6 +512,9 @@ public:
     virtual void didStartWorkerRunLoop(const WebWorkerRunLoop&) { }
     virtual void didStopWorkerRunLoop(const WebWorkerRunLoop&) { }
 
+    // Device Motion / Orientation -----------------------------------------

[Peter Beverloo, 2013/04/18 13:56:06]

micro ocd nit: this line has one more dash than the line above here.

[timvolodine, 2013/04/18 14:55:37]

Done.

+    virtual WebDeviceMotionReader* deviceMotionReader() { return 0; }
+
 protected:
     virtual ~Platform() { }
 };