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

content/browser/web_contents/web_drag_source_mac.mm

 // 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.
 
 #import "content/browser/web_contents/web_drag_source_mac.h"
 
 #include <sys/param.h>
 
 #include <utility>
 
@@ skipping 12 matching lines @@
 #include "content/browser/download/drag_download_util.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/drop_data.h"
 #include "net/base/escape.h"
 #include "net/base/filename_util.h"
 #include "net/base/mime_util.h"
 #include "ui/base/clipboard/custom_data_helper.h"
+#include "ui/base/cocoa/cocoa_base_utils.h"
 #include "ui/base/dragdrop/cocoa_dnd_util.h"
 #include "ui/gfx/image/image.h"
 #include "ui/resources/grit/ui_resources.h"
 #include "url/url_constants.h"
 
 using base::SysNSStringToUTF8;
 using base::SysUTF8ToNSString;
 using base::SysUTF16ToNSString;
 using content::BrowserThread;
 using content::DragDownloadFile;
@@ skipping 172 matching lines @@
 
   // Oops!
   } else {
     // Unknown drag pasteboard type.
     NOTREACHED();
   }
 }
 
 - (NSPoint)convertScreenPoint:(NSPoint)screenPoint {
   DCHECK([contentsView_ window]);
-  NSPoint basePoint = [[contentsView_ window] convertScreenToBase:screenPoint];
+  NSPoint basePoint =
+      ui::ConvertPointFromScreenToWindow([contentsView_ window], screenPoint);
   return [contentsView_ convertPoint:basePoint fromView:nil];
 }
 
 - (void)startDrag {
   if (!contentsView_)
     return;
 
   NSEvent* currentEvent = [NSApp currentEvent];
 
   // Synthesize an event for dragging, since we can't be sure that
@@ skipping 226 matching lines @@
 - (NSImage*)dragImage {
   if (dragImage_)
     return dragImage_;
 
   // Default to returning a generic image.
   return content::GetContentClient()->GetNativeImageNamed(
       IDR_DEFAULT_FAVICON).ToNSImage();
 }
 
 @end  // @implementation WebDragSource (Private)