Cleanup: Remove chrome namespace for storage monitor and media galleries.

chrome/browser/storage_monitor/storage_monitor.cc

Index: chrome/browser/storage_monitor/storage_monitor.cc
diff --git a/chrome/browser/storage_monitor/storage_monitor.cc b/chrome/browser/storage_monitor/storage_monitor.cc
index 10d043e6d9f2318aa14708e38639c05c8a69a4d8..0d5ff1e3d07c79e6a1841a7cfd865546cb8852a3 100644
--- a/chrome/browser/storage_monitor/storage_monitor.cc
+++ b/chrome/browser/storage_monitor/storage_monitor.cc
@@ -10,8 +10,6 @@
 #include "chrome/browser/storage_monitor/removable_storage_observer.h"
 #include "chrome/browser/storage_monitor/transient_device_ids.h"
 
-namespace chrome {
-
 StorageMonitor::Receiver::~Receiver() {
 }
 
@@ -174,5 +172,3 @@ void StorageMonitor::ProcessDetach(const std::string& id) {
         &RemovableStorageObserver::OnRemovableStorageDetached, info);
   }
 }
-
-}  // namespace chrome