Add a help bubble pointing to the omnibox when installing an extension with

chrome/browser/ui/views/location_bar/location_bar_view.cc

Index: chrome/browser/ui/views/location_bar/location_bar_view.cc
diff --git a/chrome/browser/ui/views/location_bar/location_bar_view.cc b/chrome/browser/ui/views/location_bar/location_bar_view.cc
index 09c18a9faaf9ffbcc67c00996d5c67f422aad159..24967eb5bf9ff7d6e0e8cb35e68c80a8ea942db1 100644
--- a/chrome/browser/ui/views/location_bar/location_bar_view.cc
+++ b/chrome/browser/ui/views/location_bar/location_bar_view.cc
@@ -387,6 +387,17 @@ void LocationBarView::ShowStarBubble(const GURL& url, bool newly_bookmarked) {
                                   profile_, url, newly_bookmarked);
 }
 
+gfx::Point LocationBarView::GetLocationEntryOrigin() const {
+  gfx::Point origin(location_entry_view_->bounds().origin());
+  // If the UI layout is RTL, the coordinate system is not transformed and
+  // therefore we need to adjust the X coordinate so that bubble appears on the
+  // right hand side of the location bar.
+  if (base::i18n::IsRTL())
+    origin.set_x(width() - origin.x());
+  views::View::ConvertPointToScreen(this, &origin);
+  return origin;
+}
+
 gfx::Size LocationBarView::GetPreferredSize() {
   return gfx::Size(0, GetThemeProvider()->GetBitmapNamed(mode_ == POPUP ?
       IDR_LOCATIONBG_POPUPMODE_CENTER : IDR_LOCATIONBG_C)->height());