Populates sourceDevice attribute into MouseEvent

Source/core/input/InputDevice.cpp

Index: Source/core/input/InputDevice.cpp
diff --git a/Source/core/input/InputDevice.cpp b/Source/core/input/InputDevice.cpp
index e6ae87e8f7739eb25695b39a021894d80bb0d57a..976a52399c6fd6843aeefd3514ec1fa28255df02 100644
--- a/Source/core/input/InputDevice.cpp
+++ b/Source/core/input/InputDevice.cpp
@@ -21,10 +21,16 @@ InputDevice::~InputDevice()
 {
 }
 
-InputDevice* InputDevice::touchEventInstance()
+InputDevice* InputDevice::firesTouchEventsInputDevice()
 {
     DEFINE_STATIC_LOCAL(Persistent<InputDevice>, instance, (InputDevice::create(true)));
     return instance;
 }
 
+InputDevice* InputDevice::doesntFireTouchEventsInputDevice()
+{
+    DEFINE_STATIC_LOCAL(Persistent<InputDevice>, instance, (InputDevice::create(false)));
+    return instance;
+}
+
 } // namespace blink