media: Use bundled Widevine CDM in encrypted media browser tests

chrome/test/base/test_launcher_utils.cc

 // 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 "chrome/test/base/test_launcher_utils.h"
 
 #include <memory>
 
 #include "base/command_line.h"
 #include "base/environment.h"
@@ skipping 54 matching lines @@
 #endif
 
 #if defined(OS_MACOSX)
   // Use mock keychain on mac to prevent blocking permissions dialogs.
   command_line->AppendSwitch(os_crypt::switches::kUseMockKeychain);
 #endif
 
   command_line->AppendSwitch(switches::kDisableComponentUpdate);
 }
 
+void RemoveCommandLineSwitch(const base::CommandLine& in_command_line,
+                             const std::string& switch_to_remove,
+                             base::CommandLine* out_command_line) {
+  const base::CommandLine::SwitchMap& switch_map =
+      in_command_line.GetSwitches();
+  for (base::CommandLine::SwitchMap::const_iterator i = switch_map.begin();
+       i != switch_map.end(); ++i) {
+    const std::string& switch_name = i->first;
+    if (switch_name == switch_to_remove)
+      continue;
+
+    out_command_line->AppendSwitchNative(switch_name, i->second);
+  }
+}
+
 bool OverrideUserDataDir(const base::FilePath& user_data_dir) {
   bool success = true;
 
   // PathService::Override() is the best way to change the user data directory.
   // This matches what is done in ChromeMain().
   success = PathService::Override(chrome::DIR_USER_DATA, user_data_dir);
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
   // Make sure the cache directory is inside our clear profile. Otherwise
   // the cache may contain data from earlier tests that could break the
   // current test.
   //
   // Note: we use an environment variable here, because we have to pass the
   // value to the child process. This is the simplest way to do it.
   std::unique_ptr<base::Environment> env(base::Environment::Create());
   success = success && env->SetVar("XDG_CACHE_HOME", user_data_dir.value());
 #endif
 
   return success;
 }
 
 }  // namespace test_launcher_utils