Remove base::ScopedPtrHashMap from extensions/.

extensions/renderer/wake_event_page.h

Index: extensions/renderer/wake_event_page.h
diff --git a/extensions/renderer/wake_event_page.h b/extensions/renderer/wake_event_page.h
index 0eec285b6818e3ad2fdd03dc1e9c474f3029d89a..3542b4237b7ec9766d570a2d8be525131a7ba425 100644
--- a/extensions/renderer/wake_event_page.h
+++ b/extensions/renderer/wake_event_page.h
@@ -7,9 +7,9 @@
 
 #include <memory>
 #include <string>
+#include <unordered_map>
 
 #include "base/callback.h"
-#include "base/containers/scoped_ptr_hash_map.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
@@ -103,7 +103,7 @@ class WakeEventPage : public content::RenderThreadObserver {
 
   // All in-flight requests, keyed by request ID. Used on multiple threads, so
   // must be guarded by |requests_lock_|.
-  base::ScopedPtrHashMap<int, std::unique_ptr<RequestData>> requests_;
+  std::unordered_map<int, std::unique_ptr<RequestData>> requests_;
 
   // Lock for |requests_|.
   base::Lock requests_lock_;