Add renderer memory metrics

content/public/renderer/render_thread.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_PUBLIC_RENDERER_RENDER_THREAD_H_
 #define CONTENT_PUBLIC_RENDERER_RENDER_THREAD_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 22 matching lines @@
 
 namespace v8 {
 class Extension;
 }
 
 namespace content {
 
 class RenderThreadObserver;
 class ResourceDispatcherDelegate;
 
+struct RendererMemoryMetrics {
+  size_t partition_alloc_kb;
+  size_t blink_gc_kb;
+  size_t malloc_mb;
+  size_t discardable_kb;
+  size_t v8_main_thread_isolate_mb;
+  size_t total_allocated_mb;
+  size_t non_discardable_total_allocated_mb;
+};
+
 class CONTENT_EXPORT RenderThread : virtual public ChildThread {
  public:
   // Returns the one render thread for this process.  Note that this can only
   // be accessed when running on the render thread itself.
   static RenderThread* Get();
 
   RenderThread();
   ~RenderThread() override;
 
   virtual IPC::SyncChannel* GetChannel() = 0;
@@ skipping 44 matching lines @@
   virtual int PostTaskToAllWebWorkers(const base::Closure& closure) = 0;
 
   // Resolve the proxy servers to use for a given url. On success true is
   // returned and |proxy_list| is set to a PAC string containing a list of
   // proxy servers.
   virtual bool ResolveProxy(const GURL& url, std::string* proxy_list) = 0;
 
   // Gets the shutdown event for the process.
   virtual base::WaitableEvent* GetShutdownEvent() = 0;
 
+  virtual void GetRendererMemoryMetrics(
+      RendererMemoryMetrics* memory_metrics) const = 0;
+
   // Retrieve the process ID of the browser process.
   virtual int32_t GetClientId() = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_RENDERER_RENDER_THREAD_H_