Move small c/b/extensions classes into extensions namespace no.2

chrome/browser/extensions/startup_helper.h

Index: chrome/browser/extensions/startup_helper.h
diff --git a/chrome/browser/extensions/extensions_startup.h b/chrome/browser/extensions/startup_helper.h
similarity index 67%
rename from chrome/browser/extensions/extensions_startup.h
rename to chrome/browser/extensions/startup_helper.h
index ba2d3752a671425ab4bdecc09a76046a2cf74c15..f4aedc4837902e0999a42de80dd6d278fc70580b 100644
--- a/chrome/browser/extensions/extensions_startup.h
+++ b/chrome/browser/extensions/startup_helper.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_EXTENSIONS_EXTENSIONS_STARTUP_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTENSIONS_STARTUP_H_
+#ifndef CHROME_BROWSER_EXTENSIONS_STARTUP_HELPER_H_
+#define CHROME_BROWSER_EXTENSIONS_STARTUP_HELPER_H_
 
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/extensions/pack_extension_job.h"
@@ -11,17 +11,18 @@
 class CommandLine;
 class Profile;
 
+namespace extensions {
+
 // Initialization helpers for various Extension startup actions.
-class ExtensionsStartupUtil : public PackExtensionJob::Client {
+class StartupHelper : public PackExtensionJob::Client {
  public:
-  ExtensionsStartupUtil();
-  virtual ~ExtensionsStartupUtil();
+  StartupHelper();
+  virtual ~StartupHelper();
 
   virtual void OnPackSuccess(const FilePath& crx_path,
                              const FilePath& output_private_key_path) OVERRIDE;
-  virtual void OnPackFailure(
-      const std::string& error_message,
-      extensions::ExtensionCreator::ErrorType type) OVERRIDE;
+  virtual void OnPackFailure(const std::string& error_message,
+                             ExtensionCreator::ErrorType type) OVERRIDE;
 
   // Handle --pack-extension flag from the |cmd_line| by packing the specified
   // extension. Returns false if the pack job failed.
@@ -36,7 +37,9 @@ class ExtensionsStartupUtil : public PackExtensionJob::Client {
   scoped_refptr<PackExtensionJob> pack_job_;
   bool pack_job_succeeded_;
 
-  DISALLOW_COPY_AND_ASSIGN(ExtensionsStartupUtil);
+  DISALLOW_COPY_AND_ASSIGN(StartupHelper);
 };
 
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSIONS_STARTUP_H_
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_STARTUP_HELPER_H_