Blink Support for Overlay Scrollbar Animation

Source/platform/scroll/ScrollAnimatorNone.cpp

Index: Source/platform/scroll/ScrollAnimatorNone.cpp
diff --git a/Source/platform/scroll/ScrollAnimatorNone.cpp b/Source/platform/scroll/ScrollAnimatorNone.cpp
index d018d53809e6ae85a33f00309267d1aa0795f4d3..86fb57f183000db4bbc00aeb26d880e1c65f4d81 100644
--- a/Source/platform/scroll/ScrollAnimatorNone.cpp
+++ b/Source/platform/scroll/ScrollAnimatorNone.cpp
@@ -32,19 +32,24 @@
 
 #include "platform/scroll/ScrollAnimatorNone.h"
 
-#include <algorithm>
+#include "platform/TraceEvent.h"
 #include "platform/scroll/ScrollableArea.h"
 #include "wtf/CurrentTime.h"
 #include "wtf/PassOwnPtr.h"
+#include <algorithm>
 
 #include "platform/TraceEvent.h"
 
-namespace blink {
+namespace {
 
 const double kFrameRate = 60;
 const double kTickTime = 1 / kFrameRate;
 const double kMinimumTimerInterval = .001;
 
+} // namespace
+
+namespace blink {
+
 PassOwnPtr<ScrollAnimator> ScrollAnimator::create(ScrollableArea* scrollableArea)
 {
     if (scrollableArea && scrollableArea->scrollAnimatorEnabled())
@@ -488,6 +493,7 @@ void ScrollAnimatorNone::animationTimerFired()
     double currentTime = WTF::monotonicallyIncreasingTime();
 
     bool continueAnimation = false;
+
     if (m_horizontalData.m_startTime && m_horizontalData.animateScroll(currentTime))
         continueAnimation = true;
     if (m_verticalData.m_startTime && m_verticalData.animateScroll(currentTime))