Drag and drop for extension in RTL wasn't working properly....

chrome/browser/views/extensions/extension_shelf.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/views/extensions/extension_shelf.h"
 
 #include <algorithm>
 
 #include "app/resource_bundle.h"
 #include "base/logging.h"
@@ skipping 963 matching lines @@
   int count = model_->count();
   if (count == 0)
     return NULL;
 
   if (x < 0)
     return NULL;
 
   for (int i = 0; i < count; ++i) {
     Toolstrip* toolstrip = ToolstripAtIndex(i);
     View* view = toolstrip->GetShelfView();
-    if (x > (view->x() + view->width() + kToolstripPadding))
+    int x_mirrored = view->GetRootView()->MirroredXCoordinateInsideView(x);
+    if (x_mirrored > view->x() + view->width() + kToolstripPadding)
       continue;
     return toolstrip;
   }
 
   return NULL;
 }
 
 ExtensionShelf::Toolstrip* ExtensionShelf::ToolstripAtIndex(int index) {
   return static_cast<Toolstrip*>(model_->ToolstripAt(index).data);
 }
@@ skipping 81 matching lines @@
 
 bool ExtensionShelf::IsAlwaysShown() {
   Profile* profile = browser_->profile();
   return profile->GetPrefs()->GetBoolean(prefs::kShowExtensionShelf);
 }
 
 bool ExtensionShelf::OnNewTabPage() {
   return (browser_ && browser_->GetSelectedTabContents() &&
       browser_->GetSelectedTabContents()->IsExtensionShelfAlwaysVisible());
 }