Moved CrxInstaller and CrxInstallerError into extensions namespace

chrome/browser/ui/webui/extensions/install_extension_handler.cc

Index: chrome/browser/ui/webui/extensions/install_extension_handler.cc
diff --git a/chrome/browser/ui/webui/extensions/install_extension_handler.cc b/chrome/browser/ui/webui/extensions/install_extension_handler.cc
index 78b1b2ca08916b6648943017fcb8fc80f93a68e8..9a5da3690c73e4ec1c4bfe4acfc8901d84381572 100644
--- a/chrome/browser/ui/webui/extensions/install_extension_handler.cc
+++ b/chrome/browser/ui/webui/extensions/install_extension_handler.cc
@@ -83,12 +83,12 @@ void InstallExtensionHandler::HandleInstallMessage(const ListValue* args) {
   Browser* browser = browser::FindBrowserWithWebContents(
       web_ui()->GetWebContents());
   Profile* profile = browser->profile();
-  scoped_refptr<CrxInstaller> crx_installer(
-      CrxInstaller::Create(
+  scoped_refptr<extensions::CrxInstaller> crx_installer(
+      extensions::CrxInstaller::Create(
           ExtensionSystem::Get(profile)->extension_service(),
           new ExtensionInstallPrompt(browser)));
   crx_installer->set_off_store_install_allow_reason(
-      CrxInstaller::OffStoreInstallAllowedFromSettingsPage);
+      extensions::CrxInstaller::OffStoreInstallAllowedFromSettingsPage);
 
   const bool kCaseSensitive = false;