Clean up remaining unused globals (on mac).

content/browser/media/encrypted_media_browsertest.cc

 // Copyright (c) 2013 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/command_line.h"
 #include "base/path_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/win/windows_version.h"
 #include "content/browser/media/media_browsertest.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/shell/browser/shell.h"
 
 // Available key systems.
 static const char kClearKeyKeySystem[] = "webkit-org.w3.clearkey";
 
 // Supported media types.
 static const char kWebMAudioOnly[] = "audio/webm; codecs=\"vorbis\"";
 static const char kWebMVideoOnly[] = "video/webm; codecs=\"vp8\"";
 static const char kWebMAudioVideo[] = "video/webm; codecs=\"vorbis, vp8\"";
-static const char kMP4AudioOnly[] = "audio/mp4; codecs=\"mp4a.40.2\"";
-static const char kMP4VideoOnly[] = "video/mp4; codecs=\"avc1.4D4041\"";
 
 // EME-specific test results and errors.
 static const char kEmeGkrException[] = "GENERATE_KEY_REQUEST_EXCEPTION";
 static const char kEmeKeyError[] = "KEYERROR";
 
 // The type of video src used to load media.
 enum SrcType {
   SRC,
   MSE
 };
@@ skipping 108 matching lines @@
 }
 
 // TODO(shadi): Do we need both this and InvalidKeySystem?
 IN_PROC_BROWSER_TEST_F(EncryptedMediaTest, UnknownKeySystemThrowsException) {
   RunEncryptedMediaTest("encrypted_media_player.html", "bear-a-enc_a.webm",
                         kWebMAudioOnly, "com.example.foo", SRC,
                         kEmeGkrException);
 }
 
 }  // namespace content