Add an IPC method for Blink to call RapporService::RecordSample()

content/renderer/render_thread_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_RENDER_THREAD_IMPL_H_
 #define CONTENT_RENDERER_RENDER_THREAD_IMPL_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 148 matching lines @@
   int GenerateRoutingID() override;
   void AddFilter(IPC::MessageFilter* filter) override;
   void RemoveFilter(IPC::MessageFilter* filter) override;
   void AddObserver(RenderProcessObserver* observer) override;
   void RemoveObserver(RenderProcessObserver* observer) override;
   void SetResourceDispatcherDelegate(
       ResourceDispatcherDelegate* delegate) override;
   void EnsureWebKitInitialized() override;
   void RecordAction(const base::UserMetricsAction& action) override;
   void RecordComputedAction(const std::string& action) override;
+  void RecordRappor(
+      const std::string& metric,
+      const std::string& sample) override;
   scoped_ptr<base::SharedMemory> HostAllocateSharedMemoryBuffer(
       size_t buffer_size) override;
   cc::SharedBitmapManager* GetSharedBitmapManager() override;
   void RegisterExtension(v8::Extension* extension) override;
   void ScheduleIdleHandler(int64 initial_delay_ms) override;
   void IdleHandler() override;
   int64 GetIdleNotificationDelayInMs() const override;
   void SetIdleNotificationDelayInMs(
       int64 idle_notification_delay_in_ms) override;
   void UpdateHistograms(int sequence_number) override;
@@ skipping 461 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(RenderThreadImpl);
 };
 
 #if defined(COMPILER_MSVC)
 #pragma warning(pop)
 #endif
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_THREAD_IMPL_H_