Move component updater artifacts into component_updater namespace.

chrome/browser/component_updater/flash_component_installer.h

Index: chrome/browser/component_updater/flash_component_installer.h
diff --git a/chrome/browser/component_updater/flash_component_installer.h b/chrome/browser/component_updater/flash_component_installer.h
index af025ac284c78cf7aaedac52dcc9f9d16ffde9be..0d0b4242a859ae722799be6c18f5e520436afb8f 100644
--- a/chrome/browser/component_updater/flash_component_installer.h
+++ b/chrome/browser/component_updater/flash_component_installer.h
@@ -5,13 +5,15 @@
 #ifndef CHROME_BROWSER_COMPONENT_UPDATER_FLASH_COMPONENT_INSTALLER_H_
 #define CHROME_BROWSER_COMPONENT_UPDATER_FLASH_COMPONENT_INSTALLER_H_
 
-class ComponentUpdateService;
-
 namespace base {
 class DictionaryValue;
 class Version;
 }
 
+namespace component_updater {
+
+class ComponentUpdateService;
+
 // Our job is to 1) find what Pepper flash is installed (if any) and 2) register
 // with the component updater to download the latest version when available.
 // The first part is IO intensive so we do it asynchronously in the file thread.
@@ -22,4 +24,6 @@ void RegisterPepperFlashComponent(ComponentUpdateService* cus);
 bool CheckPepperFlashManifest(const base::DictionaryValue& manifest,
                               base::Version* version_out);
 
+}  // namespace component_updater
+
 #endif  // CHROME_BROWSER_COMPONENT_UPDATER_FLASH_COMPONENT_INSTALLER_H_