Move component updater artifacts into component_updater namespace.

chrome/browser/net/crl_set_fetcher.h

Index: chrome/browser/net/crl_set_fetcher.h
diff --git a/chrome/browser/net/crl_set_fetcher.h b/chrome/browser/net/crl_set_fetcher.h
index 5f7bdf3892f6b025af7370c4db673fc8fbb9e905..28b224a4d93b8d51cf127af092ce7f76a6a0a1e4 100644
--- a/chrome/browser/net/crl_set_fetcher.h
+++ b/chrome/browser/net/crl_set_fetcher.h
@@ -20,14 +20,12 @@ namespace net {
 class CRLSet;
 }
 
-class ComponentUpdateService;
-
-class CRLSetFetcher : public ComponentInstaller,
+class CRLSetFetcher : public component_updater::ComponentInstaller,
                       public base::RefCountedThreadSafe<CRLSetFetcher> {
  public:
   CRLSetFetcher();
 
-  void StartInitialLoad(ComponentUpdateService* cus);
+  void StartInitialLoad(component_updater::ComponentUpdateService* cus);
 
   // ComponentInstaller interface
   virtual void OnUpdateError(int error) OVERRIDE;
@@ -62,7 +60,7 @@ class CRLSetFetcher : public ComponentInstaller,
   // RegisterComponent registers this object as a component updater.
   void RegisterComponent(uint32 sequence_of_loaded_crl);
 
-  ComponentUpdateService* cus_;
+  component_updater::ComponentUpdateService* cus_;
 
   // We keep a pointer to the current CRLSet for use on the FILE thread when
   // applying delta updates.