Add Widevine signature files into Mac build

chrome/common/media/cdm_host_file_path.cc

 // Copyright 2017 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/common/media/cdm_host_file_path.h"
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
 #include "base/macros.h"
@@ skipping 62 matching lines @@
     base::FilePath file_path = version_dir.Append(kVersionedFiles[i]);
     DVLOG(2) << __func__ << ": versioned file " << i << " at "
              << file_path.value();
     cdm_host_file_paths->push_back(
         CdmHostFilePath(file_path, GetSigFilePath(file_path)));
   }
 
 #elif defined(OS_MACOSX)
 
   // Framework signature is next to the framework directory, not next to
-  // the actual framework executable.
+  // the actual framework executable. As the framework is now internally

[sky, 2017/02/22 17:00:07]

Isn't there a better way to get the location rather than assuming you have to go
up three directories? Maybe DIR_EXE?

[jrummell, 2017/02/22 23:14:51]

It turns out that with the symlinks added it still thinks it's in the original
directory, so I've reverted this change.

+  // versioned, the signature file is up three directories. Chrome also
+  // externally versions the framework, so there will only ever be one
+  // internal version of the framework per outer version directory.
   base::FilePath chrome_framework_path =
       base::mac::FrameworkBundlePath().Append(chrome::kFrameworkExecutableName);
-  base::FilePath chrome_framework_sig_path =
-      GetSigFilePath(base::mac::FrameworkBundlePath().DirName().Append(
+  base::FilePath chrome_framework_sig_path = GetSigFilePath(
+      base::mac::FrameworkBundlePath().DirName().DirName().DirName().Append(
           chrome::kFrameworkExecutableName));
 
   DVLOG(2) << __func__
            << ": chrome_framework_path=" << chrome_framework_path.value()
            << ", signature_path=" << chrome_framework_sig_path.value();
   cdm_host_file_paths->push_back(
       CdmHostFilePath(chrome_framework_path, chrome_framework_sig_path));
 
 #elif defined(OS_LINUX)
 
   base::FilePath chrome_exe_dir;
   if (!PathService::Get(base::DIR_EXE, &chrome_exe_dir))
     NOTREACHED();
 
   base::FilePath chrome_path =
       chrome_exe_dir.Append(FILE_PATH_LITERAL("chrome"));
   DVLOG(2) << __func__ << ": chrome_path=" << chrome_path.value();
   cdm_host_file_paths->push_back(
       CdmHostFilePath(chrome_path, GetSigFilePath(chrome_path)));
 
 #endif  // defined(OS_WIN)
 }
 
 }  // namespace chrome