Fix projection touch HUD in RTL

ash/touch/touch_hud_projection.cc

 // Copyright 2013 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 "ash/touch/touch_hud_projection.h"
 
 #include "ash/root_window_controller.h"
 #include "ash/shell.h"
 #include "ash/wm/property_util.h"
 #include "third_party/skia/include/effects/SkGradientShader.h"
@@ skipping 45 matching lines @@
   }
 
   void UpdateTouch(const ui::TouchEvent& touch) {
     if (touch.type() == ui::ET_TOUCH_RELEASED ||
         touch.type() == ui::ET_TOUCH_CANCELLED) {
       fadeout_.reset(new ui::LinearAnimation(kFadeoutDurationInMs,
                                              kFadeoutFrameRate,
                                              this));
       fadeout_->Start();
     } else {
-      SetX(touch.root_location().x() - kPointRadius - 1);
+      SetX(parent()->GetMirroredXInView(touch.root_location().x()) -
+               kPointRadius - 1);
       SetY(touch.root_location().y() - kPointRadius - 1);
     }
   }
 
   void Remove() {
     delete this;
   }
 
  private:
   virtual ~TouchPointView() {
@@ skipping 100 matching lines @@
   controller->set_touch_hud_projection(this);
 }
 
 void TouchHudProjection::UnsetHudForRootWindowController(
     RootWindowController* controller) {
   controller->set_touch_hud_projection(NULL);
 }
 
 }  // namespace internal
 }  // namespace ash