Change media source switch to refer to the prefixed API.

chrome_frame/test/policy_settings_unittest.cc

Index: chrome_frame/test/policy_settings_unittest.cc
diff --git a/chrome_frame/test/policy_settings_unittest.cc b/chrome_frame/test/policy_settings_unittest.cc
index 343b4262e5e49e736da400ab640a6b7dc994af92..ba1ecdd194f6083e19da3861447eb50e1d0f87cc 100644
--- a/chrome_frame/test/policy_settings_unittest.cc
+++ b/chrome_frame/test/policy_settings_unittest.cc
@@ -225,7 +225,7 @@ TEST_F(PolicySettingsTest, AdditionalLaunchParameters) {
       AdditionalLaunchParameters().GetProgram().empty());
 
   std::string test_switches("--");
-  test_switches += switches::kDisableMediaSource;
+  test_switches += switches::kDisableWebKitMediaSource;
 
   HKEY root[] = { HKEY_LOCAL_MACHINE, HKEY_CURRENT_USER };
   for (int i = 0; i < arraysize(root); ++i) {
@@ -234,13 +234,14 @@ TEST_F(PolicySettingsTest, AdditionalLaunchParameters) {
     ResetPolicySettings();
     const CommandLine& additional_params =
         PolicySettings::GetInstance()->AdditionalLaunchParameters();
-    EXPECT_TRUE(additional_params.HasSwitch(switches::kDisableMediaSource));
+    EXPECT_TRUE(additional_params.HasSwitch(
+        switches::kDisableWebKitMediaSource));
 
     base::FilePath program_path(FILE_PATH_LITERAL("my_chrome.exe"));
     CommandLine new_cmd_line(program_path);
     new_cmd_line.AppendArguments(additional_params, false);
     EXPECT_NE(new_cmd_line.GetProgram(), additional_params.GetProgram());
-    EXPECT_TRUE(new_cmd_line.HasSwitch(switches::kDisableMediaSource));
+    EXPECT_TRUE(new_cmd_line.HasSwitch(switches::kDisableWebKitMediaSource));
 
     DeleteChromeFramePolicyEntries(root[i]);
   }