Revert "Create and pass shared-histogram-allocator from browser to renderer."

content/public/test/mock_render_process_host.h

Index: content/public/test/mock_render_process_host.h
diff --git a/content/public/test/mock_render_process_host.h b/content/public/test/mock_render_process_host.h
index e956b80b5f761d7cd09b69aa27d467e9dcef3244..d6dcea0e02899415f87600806604c33400fc1de4 100644
--- a/content/public/test/mock_render_process_host.h
+++ b/content/public/test/mock_render_process_host.h
@@ -11,7 +11,6 @@
 
 #include "base/macros.h"
 #include "base/memory/scoped_vector.h"
-#include "base/metrics/persistent_memory_allocator.h"
 #include "base/observer_list.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_process_host_factory.h"
@@ -93,8 +92,6 @@ class MockRenderProcessHost : public RenderProcessHost {
   void ResumeDeferredNavigation(const GlobalRequestID& request_id) override;
   void NotifyTimezoneChange(const std::string& zone_id) override;
   ServiceRegistry* GetServiceRegistry() override;
-  scoped_ptr<base::SharedPersistentMemoryAllocator> TakeMetricsAllocator()
-      override;
   const base::TimeTicks& GetInitTimeForNavigationMetrics() const override;
   bool SubscribeUniformEnabled() const override;
   void OnAddSubscription(unsigned int target) override;