Remove uses of base::hash_map from //chrome

chrome/renderer/extensions/automation_internal_custom_bindings.h

Index: chrome/renderer/extensions/automation_internal_custom_bindings.h
diff --git a/chrome/renderer/extensions/automation_internal_custom_bindings.h b/chrome/renderer/extensions/automation_internal_custom_bindings.h
index c2e3b6ca693af008101a7d23dfbebabf444b6e1c..d32ea1a5dc14f40ca0d7208ad6e29169868f5ced 100644
--- a/chrome/renderer/extensions/automation_internal_custom_bindings.h
+++ b/chrome/renderer/extensions/automation_internal_custom_bindings.h
@@ -5,6 +5,9 @@
 #ifndef CHROME_RENDERER_EXTENSIONS_AUTOMATION_INTERNAL_CUSTOM_BINDINGS_H_
 #define CHROME_RENDERER_EXTENSIONS_AUTOMATION_INTERNAL_CUSTOM_BINDINGS_H_
 
+#include <map>
+#include <vector>
+
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "chrome/common/extensions/api/automation.h"
@@ -174,8 +177,8 @@ class AutomationInternalCustomBindings : public ObjectBackedNativeHandler,
   void SendChildTreeIDEvent(ui::AXTree* tree, ui::AXNode* node);
   void SendNodesRemovedEvent(ui::AXTree* tree, const std::vector<int>& ids);
 
-  base::hash_map<int, TreeCache*> tree_id_to_tree_cache_map_;
-  base::hash_map<ui::AXTree*, TreeCache*> axtree_to_tree_cache_map_;
+  std::map<int, TreeCache*> tree_id_to_tree_cache_map_;
+  std::map<ui::AXTree*, TreeCache*> axtree_to_tree_cache_map_;
   scoped_refptr<AutomationMessageFilter> message_filter_;
   bool is_active_profile_;
   std::vector<TreeChangeObserver> tree_change_observers_;