wm: Make WM_MOVE_PANEL use top-right coordinates.

src/platform/window_manager/mock_chrome.h

 // Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WINDOW_MANAGER_MOCK_CHROME_H_
 #define WINDOW_MANAGER_MOCK_CHROME_H_
 
 #include <map>
 #include <vector>
 #include <tr1/memory>
@@ skipping 275 matching lines @@
   bool on_button_press_event(GdkEventButton* event);
   bool on_button_release_event(GdkEventButton* event);
   bool on_motion_notify_event(GdkEventMotion* event);
 
   Panel* panel_;  // not owned
   XWindow xid_;
 
   // Is the mouse button currently down?
   bool mouse_down_;
 
-  // Cursor's absolute position when the mouse button was pressed.
+  // Pointer's absolute position when the mouse button was pressed.
   int mouse_down_abs_x_;
   int mouse_down_abs_y_;
 
-  // Cursor's offset from the upper-left corner of the titlebar when the
+  // Pointer's offset from the upper-right corner of the titlebar when the
   // mouse button was pressed.
   int mouse_down_offset_x_;
   int mouse_down_offset_y_;
 
   // Is the titlebar currently being dragged?  That is, has the cursor
   // moved more than kDragThreshold away from its starting position?
   bool dragging_;
 
   // Is this panel focused?  We draw ourselves differently if it is.
   bool focused_;
@@ skipping 79 matching lines @@
 
   // The window currently under the floating tab.
   ChromeWindow* window_under_floating_tab_;
 
   DISALLOW_COPY_AND_ASSIGN(MockChrome);
 };
 
 }  // namespace mock_chrome
 
 #endif  // WINDOW_MANAGER_MOCK_CHROME_H_