[Refactor] Always pass in screen coordinates to UIControlsAura::SendMouseMove()

ui/base/test/ui_controls_internal_win.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 "ui/base/test/ui_controls_internal_win.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
@@ skipping 237 matching lines @@
 
   if (::SendInput(i, input, sizeof(INPUT)) != i)
     return false;
 
   if (dispatcher.get())
     dispatcher->AddRef();
 
   return true;
 }
 
-bool SendMouseMoveImpl(long x, long y, const base::Closure& task) {
+bool SendMouseMoveImpl(long screen_x,
+                       long screen_y,
+                       const base::Closure& task) {
   // First check if the mouse is already there.
   POINT current_pos;
   ::GetCursorPos(&current_pos);
-  if (x == current_pos.x && y == current_pos.y) {
+  if (screen_x == current_pos.x && screen_y == current_pos.y) {
     if (!task.is_null())
       base::MessageLoop::current()->PostTask(FROM_HERE, task);
     return true;
   }
 
   INPUT input = { 0 };
 
   int screen_width = ::GetSystemMetrics(SM_CXSCREEN) - 1;
   int screen_height  = ::GetSystemMetrics(SM_CYSCREEN) - 1;
-  LONG pixel_x  = static_cast<LONG>(x * (65535.0f / screen_width));
-  LONG pixel_y = static_cast<LONG>(y * (65535.0f / screen_height));
+  LONG pixel_x  = static_cast<LONG>(screen_x * (65535.0f / screen_width));
+  LONG pixel_y = static_cast<LONG>(screen_y * (65535.0f / screen_height));
 
   input.type = INPUT_MOUSE;
   input.mi.dwFlags = MOUSEEVENTF_ABSOLUTE | MOUSEEVENTF_MOVE;
   input.mi.dx = pixel_x;
   input.mi.dy = pixel_y;
 
   scoped_refptr<InputDispatcher> dispatcher(
       !task.is_null() ? new InputDispatcher(task, WM_MOUSEMOVE) : NULL);
 
   if (!::SendInput(1, &input, sizeof(INPUT)))
@@ skipping 49 matching lines @@
     return false;
 
   if (dispatcher.get())
     dispatcher->AddRef();
 
   return true;
 }
 
 }  // namespace internal
 }  // namespace ui_controls