Hide location bar on Javascript-initiated scroll.

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 6d44e042af538f17c108e45c3c0b3dc3706ee2b3..47986115e86d5ca933dea6b8ae453efb43093791 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
@@ -2538,6 +2538,13 @@ public class ContentViewCore implements MotionEventDelegate, NavigationClient {
     }
 
     /**
+     * Show or hide the top controls.
+     */
+    public void showTopControls(boolean show) {
+        nativeShowTopControls(mNativeContentViewCore, show);
+    }
+
+    /**
      * @See android.webkit.WebView#pageDown(boolean)
      */
     public boolean pageDown(boolean bottom) {
@@ -2803,6 +2810,8 @@ public class ContentViewCore implements MotionEventDelegate, NavigationClient {
     private native void nativeExitFullscreen(int nativeContentViewCoreImpl);
     private native void nativeUpdateTopControlsState(int nativeContentViewCoreImpl,
             boolean enableHiding, boolean enableShowing, boolean animate);
+    private native void nativeShowTopControls(
+            int nativeContentViewCoreImpl, boolean show);
 
     private native void nativeShowImeIfNeeded(int nativeContentViewCoreImpl);