Modify gesture event types for WebView-tag scroll bubbling.

Source/web/WebInputEventConversion.cpp

Index: Source/web/WebInputEventConversion.cpp
diff --git a/Source/web/WebInputEventConversion.cpp b/Source/web/WebInputEventConversion.cpp
index df65059f3854eea1db3b53d39b914e98e04c179d..bcaa8823ea398290baed0a0472936ac88b9f6537 100644
--- a/Source/web/WebInputEventConversion.cpp
+++ b/Source/web/WebInputEventConversion.cpp
@@ -197,6 +197,7 @@ PlatformWheelEventBuilder::PlatformWheelEventBuilder(Widget* widget, const WebMo
 
     m_hasPreciseScrollingDeltas = e.hasPreciseScrollingDeltas;
     m_canScroll = e.canScroll;
+    m_resendSource = e.resendSource;
     m_railsMode = static_cast<PlatformEvent::RailsMode>(e.railsMode);
 #if OS(MACOSX)
     m_phase = static_cast<PlatformWheelEventPhase>(e.phase);
@@ -214,15 +215,20 @@ PlatformGestureEventBuilder::PlatformGestureEventBuilder(Widget* widget, const W
     switch (e.type) {
     case WebInputEvent::GestureScrollBegin:
         m_type = PlatformEvent::GestureScrollBegin;
+        m_data.m_scroll.m_resendSource = e.resendSource;
         break;
     case WebInputEvent::GestureScrollEnd:
         m_type = PlatformEvent::GestureScrollEnd;
+        m_data.m_scroll.m_resendSource = e.resendSource;
         break;
     case WebInputEvent::GestureFlingStart:
         m_type = PlatformEvent::GestureFlingStart;
+        m_data.m_scroll.m_velocityX = e.data.flingStart.velocityX;
+        m_data.m_scroll.m_velocityY = e.data.flingStart.velocityY;
         break;
     case WebInputEvent::GestureScrollUpdate:
         m_type = PlatformEvent::GestureScrollUpdate;
+        m_data.m_scroll.m_resendSource = e.resendSource;
         m_data.m_scroll.m_deltaX = scaleDeltaToWindow(widget, e.data.scrollUpdate.deltaX);
         m_data.m_scroll.m_deltaY = scaleDeltaToWindow(widget, e.data.scrollUpdate.deltaY);
         m_data.m_scroll.m_velocityX = e.data.scrollUpdate.velocityX;
@@ -606,6 +612,7 @@ WebMouseWheelEventBuilder::WebMouseWheelEventBuilder(const Widget* widget, const
     wheelTicksY = event.ticksY();
     scrollByPage = event.deltaMode() == WheelEvent::DOM_DELTA_PAGE;
     canScroll = event.canScroll();
+    resendSource = event.resendSource();
     railsMode = static_cast<RailsMode>(event.railsMode());
 }
 
@@ -751,6 +758,11 @@ WebGestureEventBuilder::WebGestureEventBuilder(const LayoutObject* layoutObject,
         type = GestureScrollUpdate;
         data.scrollUpdate.deltaX = event.deltaX();
         data.scrollUpdate.deltaY = event.deltaY();
+        data.scrollUpdate.inertial = event.inertial();
+    } else if (event.type() == EventTypeNames::gestureflingstart) {
+        type = GestureFlingStart;
+        data.flingStart.velocityX = event.velocityX();
+        data.flingStart.velocityY = event.velocityY();
     } else if (event.type() == EventTypeNames::gesturetap) {
         type = GestureTap;
         data.tap.tapCount = 1;
@@ -764,6 +776,7 @@ WebGestureEventBuilder::WebGestureEventBuilder(const LayoutObject* layoutObject,
     IntPoint localPoint = convertAbsoluteLocationForLayoutObject(event.absoluteLocation(), *layoutObject);
     x = localPoint.x();
     y = localPoint.y();
+    resendSource = event.resendSource();
 }
 
 } // namespace blink