Add canScroll bit to WebMouseWheelEvent

Source/platform/PlatformWheelEvent.h

Index: Source/platform/PlatformWheelEvent.h
diff --git a/Source/platform/PlatformWheelEvent.h b/Source/platform/PlatformWheelEvent.h
index 7eebb25f43bd2eff3ea4270297a2f42631aec15b..09d927b70763b84fbeef6b33aca80c6bac0943b4 100644
--- a/Source/platform/PlatformWheelEvent.h
+++ b/Source/platform/PlatformWheelEvent.h
@@ -63,6 +63,7 @@ public:
         , m_wheelTicksY(0)
         , m_granularity(ScrollByPixelWheelEvent)
         , m_hasPreciseScrollingDeltas(false)
+        , m_suppressScroll(false)
 #if OS(MACOSX)
         , m_phase(PlatformWheelEventPhaseNone)
         , m_momentumPhase(PlatformWheelEventPhaseNone)
@@ -82,6 +83,7 @@ public:
         , m_wheelTicksY(wheelTicksY)
         , m_granularity(granularity)
         , m_hasPreciseScrollingDeltas(false)
+        , m_suppressScroll(false)
 #if OS(MACOSX)
         , m_phase(PlatformWheelEventPhaseNone)
         , m_momentumPhase(PlatformWheelEventPhaseNone)
@@ -104,6 +106,8 @@ public:
 
     bool hasPreciseScrollingDeltas() const { return m_hasPreciseScrollingDeltas; }
     void setHasPreciseScrollingDeltas(bool b) { m_hasPreciseScrollingDeltas = b; }
+    bool suppressScroll() const { return m_suppressScroll; }

[tdresser, 2014/11/27 15:06:06]

I think the naming should be changed here as well.

[lanwei, 2014/12/02 06:28:22]

Done.

+    void setSuppressScroll(bool b) { m_suppressScroll = b; }
 #if OS(MACOSX)
     PlatformWheelEventPhase phase() const { return m_phase; }
     PlatformWheelEventPhase momentumPhase() const { return m_momentumPhase; }
@@ -123,6 +127,7 @@ protected:
     float m_wheelTicksY;
     PlatformWheelEventGranularity m_granularity;
     bool m_hasPreciseScrollingDeltas;
+    bool m_suppressScroll;

[Rick Byers, 2014/11/27 15:55:14]

m_canScroll would be a name consistent with the rubber-band ones below...

[lanwei, 2014/12/02 06:28:22]

Done.

 #if OS(MACOSX)
     PlatformWheelEventPhase m_phase;
     PlatformWheelEventPhase m_momentumPhase;