Unify Android Webview and Chrome's fling

content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java

Index: content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java b/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
index af50532b6375159ed83ca38273ff1604a33ca353..9ecdf0f91c671d449a739f5536f4b9e0f808c8fd 100644
--- a/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
+++ b/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
@@ -1205,9 +1205,8 @@ public class ContentViewCore
      */
     @CalledByNative
     public boolean isScrollInProgress() {
-        return mTouchScrollInProgress
-                || mPotentiallyActiveFlingCount > 0
-                || getContentViewClient().isExternalFlingActive();
+        return mTouchScrollInProgress || mPotentiallyActiveFlingCount > 0
+                || getContentViewClient().isExternalScrollActive();
     }
 
     @SuppressWarnings("unused")
@@ -1226,10 +1225,6 @@ public class ContentViewCore
     @CalledByNative
     private void onFlingStartEventHadNoConsumer(int vx, int vy) {
         mTouchScrollInProgress = false;
-        for (mGestureStateListenersIterator.rewind();
-                    mGestureStateListenersIterator.hasNext();) {
-            mGestureStateListenersIterator.next().onUnhandledFlingStartEvent(vx, vy);
-        }
     }
 
     @SuppressWarnings("unused")
@@ -1313,8 +1308,7 @@ public class ContentViewCore
         nativeDoubleTap(mNativeContentViewCore, timeMs, x, y);
     }
 
-    @VisibleForTesting
-    public void flingForTest(long timeMs, int x, int y, int velocityX, int velocityY) {
+    public void fling(long timeMs, int x, int y, int velocityX, int velocityY) {
         if (mNativeContentViewCore == 0) return;
         nativeFlingCancel(mNativeContentViewCore, timeMs);
         nativeScrollBegin(mNativeContentViewCore, timeMs, x, y, velocityX, velocityY);