Canvas2d: Implement rerouting event by hit region's control.

third_party/WebKit/Source/core/events/MouseEvent.cpp

Index: third_party/WebKit/Source/core/events/MouseEvent.cpp
diff --git a/third_party/WebKit/Source/core/events/MouseEvent.cpp b/third_party/WebKit/Source/core/events/MouseEvent.cpp
index 9b8d3e1aedffc63db881c837e0fbcaa824911947..d948a0dda1a0f0b8df3b8b3f7ad74e44b29dcfbe 100644
--- a/third_party/WebKit/Source/core/events/MouseEvent.cpp
+++ b/third_party/WebKit/Source/core/events/MouseEvent.cpp
@@ -51,7 +51,7 @@ PassRefPtrWillBeRawPtr<MouseEvent> MouseEvent::create(const AtomicString& eventT
         event.movementDelta().x(), event.movementDelta().y(),
         event.modifiers(), event.button(),
         platformModifiersToButtons(event.modifiers()),
-        relatedTarget, event.timestamp(), event.syntheticEventType());
+        relatedTarget, event.timestamp(), event.syntheticEventType(), event.region());
 }
 
 PassRefPtrWillBeRawPtr<MouseEvent> MouseEvent::create(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<AbstractView> view,
@@ -61,12 +61,13 @@ PassRefPtrWillBeRawPtr<MouseEvent> MouseEvent::create(const AtomicString& type,
     short button, unsigned short buttons,
     PassRefPtrWillBeRawPtr<EventTarget> relatedTarget,
     double platformTimeStamp,
-    PlatformMouseEvent::SyntheticEventType syntheticEventType)
+    PlatformMouseEvent::SyntheticEventType syntheticEventType,
+    const String& region)
 {
     return adoptRefWillBeNoop(new MouseEvent(type, canBubble, cancelable, view,
         detail, screenX, screenY, windowX, windowY,
         movementX, movementY,
-        modifiers, button, buttons, relatedTarget, platformTimeStamp, syntheticEventType));
+        modifiers, button, buttons, relatedTarget, platformTimeStamp, syntheticEventType, region));
 }
 
 PassRefPtrWillBeRawPtr<MouseEvent> MouseEvent::create(const AtomicString& eventType, PassRefPtrWillBeRawPtr<AbstractView> view, PassRefPtrWillBeRawPtr<Event> underlyingEvent, SimulatedClickCreationScope creationScope)
@@ -116,7 +117,8 @@ MouseEvent::MouseEvent(const AtomicString& eventType, bool canBubble, bool cance
     short button, unsigned short buttons,
     PassRefPtrWillBeRawPtr<EventTarget> relatedTarget,
     double platformTimeStamp,
-    PlatformMouseEvent::SyntheticEventType syntheticEventType)
+    PlatformMouseEvent::SyntheticEventType syntheticEventType,
+    const String& region)
     : MouseRelatedEvent(eventType, canBubble, cancelable, view, detail, IntPoint(screenX, screenY),
         IntPoint(windowX, windowY), IntPoint(movementX, movementY), modifiers,
         platformTimeStamp,
@@ -126,6 +128,7 @@ MouseEvent::MouseEvent(const AtomicString& eventType, bool canBubble, bool cance
     , m_buttons(buttons)
     , m_relatedTarget(relatedTarget)
     , m_syntheticEventType(syntheticEventType)
+    , m_region(region)
 {
 }
 
@@ -135,6 +138,7 @@ MouseEvent::MouseEvent(const AtomicString& eventType, const MouseEventInit& init
     , m_buttons(initializer.buttons())
     , m_relatedTarget(initializer.relatedTarget())
     , m_syntheticEventType(PlatformMouseEvent::RealOrIndistinguishable)
+    , m_region(initializer.region())
 {
 }