Magnification controller: fix incorrect point of interest.

ash/magnifier/magnification_controller.cc

 // Copyright (c) 2012 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/magnifier/magnification_controller.h"
 
 #include "ash/accelerators/accelerator_controller.h"
 #include "ash/accessibility_delegate.h"
 #include "ash/ash_switches.h"
 #include "ash/display/root_window_transformers.h"
@@ skipping 536 matching lines @@
 ////////////////////////////////////////////////////////////////////////////////
 // MagnificationControllerImpl: aura::EventFilter implementation
 
 void MagnificationControllerImpl::OnMouseEvent(ui::MouseEvent* event) {
   aura::Window* target = static_cast<aura::Window*>(event->target());
   aura::Window* current_root = target->GetRootWindow();
   gfx::Rect root_bounds = current_root->bounds();
 
   if (root_bounds.Contains(event->root_location())) {
     // This must be before |SwitchTargetRootWindow()|.
-    point_of_interest_ = event->root_location();
+    if (event->type() != ui::ET_MOUSE_CAPTURE_CHANGED)
+      point_of_interest_ = event->root_location();
 
     if (current_root != root_window_) {
       DCHECK(current_root);
       SwitchTargetRootWindow(current_root, true);
     }
 
     if (IsMagnified() && event->type() == ui::ET_MOUSE_MOVED)
       OnMouseMove(event->root_location());
   }
 }
@@ skipping 29 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // MagnificationController:
 
 // static
 MagnificationController* MagnificationController::CreateInstance() {
   return new MagnificationControllerImpl();
 }
 
 }  // namespace ash