Revert of media: Add helper function to register pepper CDMs

chrome/browser/media/pepper_cdm_test_helper.cc

Index: chrome/browser/media/pepper_cdm_test_helper.cc
diff --git a/chrome/browser/media/pepper_cdm_test_helper.cc b/chrome/browser/media/pepper_cdm_test_helper.cc
deleted file mode 100644
index 0fd101cce006bb08f102973050d764953a3afbfe..0000000000000000000000000000000000000000
--- a/chrome/browser/media/pepper_cdm_test_helper.cc
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright 2016 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/media/pepper_cdm_test_helper.h"
-
-#include "base/command_line.h"
-#include "base/files/file_util.h"
-#include "base/path_service.h"
-#include "base/strings/utf_string_conversions.h"
-#include "content/public/common/content_switches.h"
-
-#include "widevine_cdm_version.h"  //  In SHARED_INTERMEDIATE_DIR.
-
-const char kClearKeyCdmAdapterFileName[] =
-#if defined(OS_MACOSX)
-    "clearkeycdmadapter.plugin";
-#elif defined(OS_WIN)
-    "clearkeycdmadapter.dll";
-#elif defined(OS_POSIX)
-    "libclearkeycdmadapter.so";
-#endif
-
-const char kClearKeyCdmPepperMimeType[] = "application/x-ppapi-clearkey-cdm";
-
-base::FilePath::StringType BuildPepperCdmRegistration(
-    const std::string& adapter_file_name,
-    const std::string& mime_type,
-    bool expect_adapter_exists) {
-  base::FilePath adapter_path;
-  PathService::Get(base::DIR_MODULE, &adapter_path);
-  adapter_path = adapter_path.AppendASCII(adapter_file_name);
-  DCHECK_EQ(expect_adapter_exists, base::PathExists(adapter_path));
-
-  base::FilePath::StringType pepper_cdm_registration = adapter_path.value();
-  pepper_cdm_registration.append(FILE_PATH_LITERAL("#CDM#0.1.0.0;"));
-
-#if defined(OS_WIN)
-  pepper_cdm_registration.append(base::ASCIIToUTF16(mime_type));
-#else
-  pepper_cdm_registration.append(mime_type);
-#endif
-
-  return pepper_cdm_registration;
-}
-
-void RegisterPepperCdm(base::CommandLine* command_line,
-                       const std::string& adapter_file_name,
-                       const std::string& mime_type,
-                       bool expect_adapter_exists) {
-  base::FilePath::StringType pepper_cdm_registration =
-      BuildPepperCdmRegistration(adapter_file_name, mime_type,
-                                 expect_adapter_exists);
-
-  // Append the switch to register the CDM Adapter.
-  command_line->AppendSwitchNative(switches::kRegisterPepperPlugins,
-                                   pepper_cdm_registration);
-}