Make callers of CommandLine use it via the base:: namespace.

chrome/browser/media/encrypted_media_browsertest.cc

Index: chrome/browser/media/encrypted_media_browsertest.cc
diff --git a/chrome/browser/media/encrypted_media_browsertest.cc b/chrome/browser/media/encrypted_media_browsertest.cc
index e119636da1d705bd4483e79bb96f6f517e22586a..2000b687facc75b3fc90a11e7e013f3cdd2ce630 100644
--- a/chrome/browser/media/encrypted_media_browsertest.cc
+++ b/chrome/browser/media/encrypted_media_browsertest.cc
@@ -237,7 +237,7 @@ class EncryptedMediaTestBase : public MediaBrowserTest {
     title_watcher->AlsoWaitForTitle(base::ASCIIToUTF16(kEmeKeyError));
   }
 
-  void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(base::CommandLine* command_line) override {
 #if defined(OS_ANDROID)
     command_line->AppendSwitch(
         switches::kDisableGestureRequirementForMediaPlayback);
@@ -245,7 +245,7 @@ class EncryptedMediaTestBase : public MediaBrowserTest {
   }
 
   void SetUpCommandLineForKeySystem(const std::string& key_system,
-                                    CommandLine* command_line) {
+                                    base::CommandLine* command_line) {
     if (GetServerConfig(key_system))
       // Since the web and license servers listen on different ports, we need to
       // disable web-security to send license requests to the license server.
@@ -266,7 +266,7 @@ class EncryptedMediaTestBase : public MediaBrowserTest {
 
  private:
 #if defined(ENABLE_PEPPER_CDMS)
-  void RegisterPepperCdm(CommandLine* command_line,
+  void RegisterPepperCdm(base::CommandLine* command_line,
                          const std::string& adapter_name,
                          const std::string& key_system) {
     DCHECK(!is_pepper_cdm_registered_)
@@ -329,7 +329,7 @@ class ECKEncryptedMediaTest : public EncryptedMediaTestBase {
   }
 
  protected:
-  void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(base::CommandLine* command_line) override {
     EncryptedMediaTestBase::SetUpCommandLine(command_line);
     SetUpCommandLineForKeySystem(kExternalClearKeyKeySystem, command_line);
   }
@@ -341,7 +341,7 @@ class ECKEncryptedMediaTest : public EncryptedMediaTestBase {
 // enabled by default.
 class ECKUnprefixedEncryptedMediaTest : public EncryptedMediaTestBase {
  protected:
-  void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(base::CommandLine* command_line) override {
     EncryptedMediaTestBase::SetUpCommandLine(command_line);
     command_line->AppendSwitch(switches::kEnableEncryptedMedia);
     SetUpCommandLineForKeySystem(kExternalClearKeyKeySystem, command_line);
@@ -352,7 +352,7 @@ class ECKUnprefixedEncryptedMediaTest : public EncryptedMediaTestBase {
 // Tests encrypted media playback using Widevine key system.
 class WVEncryptedMediaTest : public EncryptedMediaTestBase {
  protected:
-  virtual void SetUpCommandLine(CommandLine* command_line) override {
+  virtual void SetUpCommandLine(base::CommandLine* command_line) override {
     EncryptedMediaTestBase::SetUpCommandLine(command_line);
     command_line->AppendSwitch(switches::kEnableEncryptedMedia);
     SetUpCommandLineForKeySystem(kWidevineKeySystem, command_line);
@@ -434,7 +434,7 @@ class EncryptedMediaTest
   }
 
  protected:
-  void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(base::CommandLine* command_line) override {
     EncryptedMediaTestBase::SetUpCommandLine(command_line);
     SetUpCommandLineForKeySystem(CurrentKeySystem(), command_line);