OverscrollGlow for mainThread-{BLINK CHANGES}

Source/platform/scroll/ScrollTypes.h

Index: Source/platform/scroll/ScrollTypes.h
diff --git a/Source/platform/scroll/ScrollTypes.h b/Source/platform/scroll/ScrollTypes.h
index ab1cd234d43aff3976204adccee2fd50c28715af..467f51607bbb62f3d1e8801bc41822f93b141722 100644
--- a/Source/platform/scroll/ScrollTypes.h
+++ b/Source/platform/scroll/ScrollTypes.h
@@ -201,8 +201,15 @@ struct ScrollResult {
         : didScroll(didScroll)
         , unusedScrollDeltaX(unusedScrollDeltaX)
         , unusedScrollDeltaY(unusedScrollDeltaY) { }
+    ScrollResult(bool didScrollX, bool didScrollY, float unusedScrollDeltaX, float unusedScrollDeltaY)
+        : didScrollX(didScrollX)
+        , didScrollY(didScrollY)
+        , unusedScrollDeltaX(unusedScrollDeltaX)
+        , unusedScrollDeltaY(unusedScrollDeltaY) { }
 
     bool didScroll;

[majidvp, 2015/06/01 15:58:29]

We should not keep didScroll around anymore as it can lead to the object being
in an inconsistent internal state. Please get rid of it and replace with an
inline:

bool didScroll() { return didScrollX || didScrollY; }

[MuVen, 2015/06/02 09:04:00]

Done.

+    bool didScrollX;
+    bool didScrollY;
     float unusedScrollDeltaX;
     float unusedScrollDeltaY;
 };