Hide location bar on Javascript-initiated scroll.

content/renderer/render_widget.cc

Index: content/renderer/render_widget.cc
diff --git a/content/renderer/render_widget.cc b/content/renderer/render_widget.cc
index 521b3306ae5de6507c109096674df0c8ef2e8209..227761d726c6362d777422ae986f2258343ab163 100644
--- a/content/renderer/render_widget.cc
+++ b/content/renderer/render_widget.cc
@@ -48,6 +48,7 @@
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebScreenInfo.h"
 #include "third_party/skia/include/core/SkShader.h"
 #include "ui/base/ui_base_switches.h"
+#include "ui/gfx/point.h"
 #include "ui/gfx/rect_conversions.h"
 #include "ui/gfx/size_conversions.h"
 #include "ui/gfx/skia_util.h"
@@ -1613,6 +1614,14 @@ void RenderWidget::show(WebNavigationPolicy) {
   SetPendingWindowRect(initial_pos_);
 }
 
+void RenderWidget::didProgrammaticallyScroll(
+    const WebKit::WebPoint& scroll_point) {
+  if (!compositor_)
+    return;
+  Send(new ViewHostMsg_DidProgrammaticallyScroll(
+    routing_id_, gfx::Vector2d(scroll_point.x, scroll_point.y)));
+}
+
 void RenderWidget::didFocus() {
 }