[content shell] move browser process stuff into browser/ subdir

content/shell/shell_browser_main_parts_mac.mm

Index: content/shell/shell_browser_main_parts_mac.mm
diff --git a/content/shell/shell_browser_main_parts_mac.mm b/content/shell/shell_browser_main_parts_mac.mm
deleted file mode 100644
index b2b84b746f5f7a5ec706a6f910faf06a9d5f7287..0000000000000000000000000000000000000000
--- a/content/shell/shell_browser_main_parts_mac.mm
+++ /dev/null
@@ -1,25 +0,0 @@
-// 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.
-
-#include "content/shell/shell_browser_main_parts.h"
-
-#import <Cocoa/Cocoa.h>
-
-#include "base/mac/bundle_locations.h"
-#include "base/mac/scoped_nsobject.h"
-#include "content/shell/shell_application_mac.h"
-
-namespace content {
-
-void ShellBrowserMainParts::PreMainMessageLoopStart() {
-  // Force the NSApplication subclass to be used.
-  [ShellCrApplication sharedApplication];
-
-  base::scoped_nsobject<NSNib> nib(
-      [[NSNib alloc] initWithNibNamed:@"MainMenu"
-                               bundle:base::mac::FrameworkBundle()]);
-  [nib instantiateNibWithOwner:NSApp topLevelObjects:nil];
-}
-
-}  // namespace content