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

chrome/browser/extensions/component_loader.cc

Index: chrome/browser/extensions/component_loader.cc
diff --git a/chrome/browser/extensions/component_loader.cc b/chrome/browser/extensions/component_loader.cc
index 907d8a7df3431b2c8e3df0d9667e62a1bbc4b51e..dab19d09e29590c0d776134629d4dcfc40a78495 100644
--- a/chrome/browser/extensions/component_loader.cc
+++ b/chrome/browser/extensions/component_loader.cc
@@ -268,7 +268,8 @@ bool ComponentLoader::Exists(const std::string& id) const {
 void ComponentLoader::AddFileManagerExtension() {
 #if defined(OS_CHROMEOS)
 #ifndef NDEBUG
-  const CommandLine* command_line = CommandLine::ForCurrentProcess();
+  const base::CommandLine* command_line =
+      base::CommandLine::ForCurrentProcess();
   if (command_line->HasSwitch(switches::kFileManagerExtensionPath)) {
     base::FilePath filemgr_extension_path(
         command_line->GetSwitchValuePath(switches::kFileManagerExtensionPath));
@@ -355,7 +356,8 @@ void ComponentLoader::AddChromeVoxExtension(
   base::FilePath chromevox_path =
       resources_path.Append(extension_misc::kChromeVoxExtensionPath);
 
-  const CommandLine* command_line = CommandLine::ForCurrentProcess();
+  const base::CommandLine* command_line =
+      base::CommandLine::ForCurrentProcess();
   bool is_guest = command_line->HasSwitch(chromeos::switches::kGuestSession);
   const char* manifest_filename =
       is_guest ? extension_misc::kChromeVoxGuestManifestFilename
@@ -383,7 +385,8 @@ void ComponentLoader::AddChromeVoxExtensionWithManifest(
 }
 
 std::string ComponentLoader::AddChromeOsSpeechSynthesisExtension() {
-  const CommandLine* command_line = CommandLine::ForCurrentProcess();
+  const base::CommandLine* command_line =
+      base::CommandLine::ForCurrentProcess();
   int idr = command_line->HasSwitch(chromeos::switches::kGuestSession) ?
       IDR_SPEECH_SYNTHESIS_GUEST_MANIFEST : IDR_SPEECH_SYNTHESIS_MANIFEST;
   std::string id = Add(idr,
@@ -459,7 +462,8 @@ void ComponentLoader::AddDefaultComponentExtensions(
 
   // Skip all other extensions that require user session presence.
   if (!skip_session_components) {
-    const CommandLine* command_line = CommandLine::ForCurrentProcess();
+    const base::CommandLine* command_line =
+        base::CommandLine::ForCurrentProcess();
     if (!command_line->HasSwitch(chromeos::switches::kGuestSession))
       Add(IDR_BOOKMARKS_MANIFEST,
           base::FilePath(FILE_PATH_LITERAL("bookmark_manager")));
@@ -501,7 +505,8 @@ void ComponentLoader::AddDefaultComponentExtensionsForKioskMode(
 
 void ComponentLoader::AddDefaultComponentExtensionsWithBackgroundPages(
     bool skip_session_components) {
-  const CommandLine* command_line = CommandLine::ForCurrentProcess();
+  const base::CommandLine* command_line =
+      base::CommandLine::ForCurrentProcess();
 
   // Component extensions with background pages are not enabled during tests
   // because they generate a lot of background behavior that can interfere.
@@ -637,7 +642,8 @@ void ComponentLoader::UnloadComponent(ComponentExtensionInfo* component) {
 
 void ComponentLoader::EnableFileSystemInGuestMode(const std::string& id) {
 #if defined(OS_CHROMEOS)
-  const CommandLine* command_line = CommandLine::ForCurrentProcess();
+  const base::CommandLine* command_line =
+      base::CommandLine::ForCurrentProcess();
   if (command_line->HasSwitch(chromeos::switches::kGuestSession)) {
     // TODO(dpolukhin): Hack to enable HTML5 temporary file system for
     // the extension. Some component extensions don't work without temporary