Move DeviceMotion related classes from core/dom to modules/device_orientation.

Source/core/core.gypi

 {
     'variables': {
         'core_idl_files': [
             'css/CSSCharsetRule.idl',
             'css/CSSFontFaceLoadEvent.idl',
             'css/CSSFontFaceRule.idl',
             'css/CSSHostRule.idl',
             'css/CSSImportRule.idl',
             'css/CSSMediaRule.idl',
             'css/CSSPageRule.idl',
@@ skipping 41 matching lines @@
             'dom/CompositionEvent.idl',
             'dom/CustomElementConstructor.idl',
             'dom/CustomEvent.idl',
             'dom/DOMCoreException.idl',
             'dom/DOMError.idl',
             'dom/DOMImplementation.idl',
             'dom/DOMStringList.idl',
             'dom/DOMStringMap.idl',
             'dom/DataTransferItem.idl',
             'dom/DataTransferItemList.idl',
-            'dom/DeviceAcceleration.idl',
-            'dom/DeviceMotionEvent.idl',
             'dom/DeviceOrientationEvent.idl',
-            'dom/DeviceRotationRate.idl',
             'dom/Document.idl',
             'dom/DocumentFragment.idl',
             'dom/DocumentType.idl',
             'dom/Element.idl',
             'dom/Entity.idl',
             'dom/EntityReference.idl',
             'dom/ErrorEvent.idl',
             'dom/Event.idl',
             'dom/EventException.idl',
             'dom/EventTarget.idl',
@@ skipping 1652 matching lines @@
             'dom/DOMStringList.h',
             'dom/DOMStringMap.cpp',
             'dom/DOMStringMap.h',
             'dom/DataTransferItem.cpp',
             'dom/DataTransferItem.h',
             'dom/DataTransferItemList.h',
             'dom/DatasetDOMStringMap.cpp',
             'dom/DatasetDOMStringMap.h',
             'dom/DecodedDataDocumentParser.cpp',
             'dom/DecodedDataDocumentParser.h',
-            'dom/DeviceAcceleration.cpp',
-            'dom/DeviceAcceleration.h',
-            'dom/DeviceMotionClient.h',
-            'dom/DeviceMotionController.cpp',
-            'dom/DeviceMotionController.h',
-            'dom/DeviceMotionData.cpp',
-            'dom/DeviceMotionData.h',
-            'dom/DeviceMotionEvent.cpp',
-            'dom/DeviceMotionEvent.h',
             'dom/DeviceOrientationController.cpp',
             'dom/DeviceOrientationController.h',
             'dom/DeviceOrientationData.cpp',
             'dom/DeviceOrientationEvent.cpp',
             'dom/DeviceOrientationEvent.h',
-            'dom/DeviceRotationRate.cpp',
-            'dom/DeviceRotationRate.h',
             'dom/Document.cpp',
             'dom/DocumentEventQueue.cpp',
             'dom/DocumentEventQueue.h',
             'dom/DocumentFragment.cpp',
             'dom/DocumentMarkerController.cpp',
             'dom/DocumentMarker.cpp',
             'dom/DocumentOrderedMap.cpp',
             'dom/DocumentParser.cpp',
             'dom/DocumentSharedObjectPool.cpp',
             'dom/DocumentStyleSheetCollection.cpp',
@@ skipping 1943 matching lines @@
                 'bison_exe': 'bison',
                 # We specify a preprocess so it happens locally and won't get
                 # distributed to goma.
                 # FIXME: /usr/bin/gcc won't exist on OSX forever. We want to
                 # use /usr/bin/clang once we require Xcode 4.x.
                 'preprocessor': '--preprocessor "/usr/bin/gcc -E -P -x c++"'
               }],
          ],
     }
 }