Prepare ui/ module for compilation with OS X 10.7 deployment target.

ui/base/cocoa/command_dispatcher.mm

 // Copyright 2015 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.
 
 #import "ui/base/cocoa/command_dispatcher.h"
 
 #include "base/logging.h"
+#include "ui/base/cocoa/cocoa_base_utils.h"
 
 namespace {
 
 // Duplicate the given key event, but changing the associated window.
 NSEvent* KeyEventForWindow(NSWindow* window, NSEvent* event) {
   NSEventType event_type = [event type];
 
   // Convert the event's location from the original window's coordinates into
   // our own.
   NSPoint location = [event locationInWindow];
-  location = [[event window] convertBaseToScreen:location];
-  location = [window convertScreenToBase:location];
+  location = ui::ConvertPointFromWindowToScreen([event window], location);
+  location = ui::ConvertPointFromScreenToWindow(window, location);
 
   // Various things *only* apply to key down/up.
   bool is_a_repeat = false;
   NSString* characters = nil;
   NSString* charactors_ignoring_modifiers = nil;
   if (event_type == NSKeyDown || event_type == NSKeyUp) {
     is_a_repeat = [event isARepeat];
     characters = [event characters];
     charactors_ignoring_modifiers = [event charactersIgnoringModifiers];
   }
@@ skipping 91 matching lines @@
     // If we get here, then the event was not handled by NSApplication.
     eventHandled_ = NO;
     // Return YES to stop native -sendEvent handling.
     return YES;
   }
 
   return NO;
 }
 
 @end