Hide location bar on Javascript-initiated scroll.

components/web_contents_delegate_android/web_contents_delegate_android.cc

Index: components/web_contents_delegate_android/web_contents_delegate_android.cc
diff --git a/components/web_contents_delegate_android/web_contents_delegate_android.cc b/components/web_contents_delegate_android/web_contents_delegate_android.cc
index 1e09f2f0b431aa86ecf1e4dc266d207887e30c4d..df0acd52c3abd232d959bb22725c95c701ff1df5 100644
--- a/components/web_contents_delegate_android/web_contents_delegate_android.cc
+++ b/components/web_contents_delegate_android/web_contents_delegate_android.cc
@@ -300,6 +300,16 @@ bool WebContentsDelegateAndroid::IsFullscreenForTabOrPending(
       env, obj.obj());
 }
 
+void WebContentsDelegateAndroid::DidProgrammaticallyScroll(
+    WebContents* web_contents, const gfx::Point& scroll_point) {
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jobject> obj = GetJavaDelegate(env);
+  if (obj.is_null())
+    return;
+  Java_WebContentsDelegateAndroid_didProgrammaticallyScroll(
+      env, obj.obj(), scroll_point.x(), scroll_point.y());
+}
+
 // ----------------------------------------------------------------------------
 // Native JNI methods
 // ----------------------------------------------------------------------------