Relands: Telemetry: hooks "chrome.gpuBenchmarking.smoothScrollBy" with java on android.

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 6e80a83c9002601b587d13d01dbffb45977a84f2..43fb3bc032611e3cd21b68dbd4bca8379b447632 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
@@ -2212,6 +2212,13 @@ public class ContentViewCore implements MotionEventDelegate, NavigationClient {
 
     @SuppressWarnings("unused")
     @CalledByNative
+    private SmoothScroller createSmoothScroller(boolean scrollDown, int mouseEventX,
+            int mouseEventY) {
+        return new SmoothScroller(this, scrollDown, mouseEventX, mouseEventY);
+    }
+
+    @SuppressWarnings("unused")
+    @CalledByNative
     private void onSelectionChanged(String text) {
         mLastSelectedText = text;
     }