Rename the OS specific ResourceMessageFilter files as well.

chrome/browser/renderer_host/resource_message_filter_mac.mm

Index: chrome/browser/renderer_host/resource_message_filter_mac.mm
===================================================================
--- chrome/browser/renderer_host/resource_message_filter_mac.mm	(revision 69076)
+++ chrome/browser/renderer_host/resource_message_filter_mac.mm	(working copy)
@@ -1,43 +0,0 @@
-// Copyright (c) 2006-2009 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 "chrome/browser/renderer_host/render_message_filter.h"
-
-#import <Cocoa/Cocoa.h>
-
-#include "base/message_loop.h"
-#include "base/sys_string_conversions.h"
-#include "chrome/browser/browser_thread.h"
-#import "chrome/browser/ui/cocoa/find_pasteboard.h"
-
-// The number of utf16 code units that will be written to the find pasteboard,
-// longer texts are silently ignored. This is to prevent that a compromised
-// renderer can write unlimited amounts of data into the find pasteboard.
-static const size_t kMaxFindPboardStringLength = 4096;
-
-class WriteFindPboardTask : public Task {
- public:
-  explicit WriteFindPboardTask(NSString* text)
-      : text_([text retain]) {}
-
-  void Run() {
-    [[FindPasteboard sharedInstance] setFindText:text_];
-  }
-
- private:
-  scoped_nsobject<NSString> text_;
-};
-
-// Called on the IO thread.
-void RenderMessageFilter::OnClipboardFindPboardWriteString(
-    const string16& text) {
-  if (text.length() <= kMaxFindPboardStringLength) {
-    NSString* nsText = base::SysUTF16ToNSString(text);
-    if (nsText) {
-      // FindPasteboard must be used on the UI thread.
-      BrowserThread::PostTask(
-          BrowserThread::UI, FROM_HERE, new WriteFindPboardTask(nsText));
-    }
-  }
-}