Mac: Let browser_tests run in bundled mode for their whole lifetime.

base/base_paths_mac.mm

 // Copyright (c) 2006-2008 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 "base/base_paths_mac.h"
 
 #import <Cocoa/Cocoa.h>
 #include <mach-o/dyld.h>
 
 #include "base/compiler_specific.h"
@@ skipping 34 matching lines @@
   switch (key) {
     case base::FILE_EXE:
     case base::FILE_MODULE: {
       return GetNSExecutablePath(result);
     }
     case base::DIR_USER_CACHE:
       return mac_util::GetUserDirectory(NSCachesDirectory, result);
     case base::DIR_APP_DATA:
       return mac_util::GetUserDirectory(NSApplicationSupportDirectory, result);
     case base::DIR_SOURCE_ROOT: {
-      if (GetNSExecutablePath(result)) {
+      // Go through PathService go catch overrides.
+      if (PathService::Get(base::FILE_EXE, result)) {
         // Start with the executable's directory.
         *result = result->DirName();
         if (mac_util::AmIBundled()) {
           // The bundled app executables (Chromium, TestShell, etc) live five
           // levels down, eg:
           // src/xcodebuild/{Debug|Release}/Chromium.app/Contents/MacOS/Chromium
           *result = result->DirName().DirName().DirName().DirName().DirName();
         } else {
           // Unit tests execute two levels deep from the source root, eg:
           // src/xcodebuild/{Debug|Release}/base_unittests
           *result = result->DirName().DirName();
         }
       }
       return true;
     }
     default:
       return false;
   }
 }
 
 }  // namespace base