Hookup android_webview scroll offset delegation to Java side.

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 58ff66c09d8348ca5fb86e39c65c6ffe30f28198..eeebf036b9d11f23fecddf5bb13100e046585029 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
@@ -153,11 +153,6 @@ public class ContentViewCore implements MotionEventDelegate, NavigationClient {
         void super_onConfigurationChanged(Configuration newConfig);
 
         /**
-         * @see View#onScrollChanged(int, int, int, int)
-         */
-        void onScrollChanged(int lPix, int tPix, int oldlPix, int oldtPix);
-
-        /**
          * @see View#awakenScrollBars()
          */
         boolean awakenScrollBars();
@@ -2149,14 +2144,6 @@ public class ContentViewCore implements MotionEventDelegate, NavigationClient {
 
         if (needHidePopupZoomer) mPopupZoomer.hide(true);
 
-        if (scrollChanged) {
-            mContainerViewInternals.onScrollChanged(
-                    (int) mRenderCoordinates.fromLocalCssToPix(scrollOffsetX),
-                    (int) mRenderCoordinates.fromLocalCssToPix(scrollOffsetY),
-                    (int) mRenderCoordinates.getScrollXPix(),
-                    (int) mRenderCoordinates.getScrollYPix());
-        }
-
         if (pageScaleChanged) {
             // This function should be called back from native as soon
             // as the scroll is applied to the backbuffer.  We should only