Move component updater artifacts into component_updater namespace.

chrome/browser/component_updater/component_patcher_operation.h

Index: chrome/browser/component_updater/component_patcher_operation.h
diff --git a/chrome/browser/component_updater/component_patcher_operation.h b/chrome/browser/component_updater/component_patcher_operation.h
index 6e9fe5be24c3ed0d2938734b559953ddec0d0458..42b289db9eb30e7de1c49bc8c4946b0c2927524f 100644
--- a/chrome/browser/component_updater/component_patcher_operation.h
+++ b/chrome/browser/component_updater/component_patcher_operation.h
@@ -11,12 +11,12 @@
 #include "chrome/browser/component_updater/component_unpacker.h"
 
 namespace base {
-
 class FilePath;
 class DictionaryValue;
-
 }  // namespace base
 
+namespace component_updater {
+
 class ComponentInstaller;
 class ComponentPatcher;
 
@@ -155,4 +155,6 @@ class DeltaUpdateOpPatchCourgette : public DeltaUpdateOp {
 // Factory function to create DeltaUpdateOp instances.
 DeltaUpdateOp* CreateDeltaUpdateOp(base::DictionaryValue* command);
 
+}  // namespace component_updater
+
 #endif  // CHROME_BROWSER_COMPONENT_UPDATER_COMPONENT_PATCHER_OPERATION_H_