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// Copyright 2013 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 CHROME_BROWSER_TASK_MANAGER_RENDERER_RESOURCE_H_
#define CHROME_BROWSER_TASK_MANAGER_RENDERER_RESOURCE_H_
#include "base/basictypes.h"
#include "chrome/browser/task_manager/resource_provider.h"
namespace content {
class RenderViewHost;
}
namespace task_manager {
// Base class for various types of render process resources that provides common
// functionality like stats tracking.
class RendererResource : public Resource {
public:
RendererResource(base::ProcessHandle process,
content::RenderViewHost* render_view_host);
~RendererResource() override;
// Resource methods:
base::string16 GetProfileName() const override;
base::ProcessHandle GetProcess() const override;
int GetUniqueChildProcessId() const override;
Type GetType() const override;
int GetRoutingID() const override;
bool ReportsCacheStats() const override;
blink::WebCache::ResourceTypeStats GetWebCoreCacheStats() const override;
bool ReportsV8MemoryStats() const override;
size_t GetV8MemoryAllocated() const override;
size_t GetV8MemoryUsed() const override;
// RenderResources always provide the network usage.
bool SupportNetworkUsage() const override;
void SetSupportNetworkUsage() override {}
void Refresh() override;
void NotifyResourceTypeStats(
const blink::WebCache::ResourceTypeStats& stats) override;
void NotifyV8HeapStats(size_t v8_memory_allocated,
size_t v8_memory_used) override;
content::RenderViewHost* render_view_host() const {
return render_view_host_;
}
private:
base::ProcessHandle process_;
int pid_;
int unique_process_id_;
// RenderViewHost we use to fetch stats.
content::RenderViewHost* render_view_host_;
// The stats_ field holds information about resource usage in the renderer
// process and so it is updated asynchronously by the Refresh() call.
blink::WebCache::ResourceTypeStats stats_;
// This flag is true if we are waiting for the renderer to report its stats.
bool pending_stats_update_;
// We do a similar dance to gather the V8 memory usage in a process.
size_t v8_memory_allocated_;
size_t v8_memory_used_;
bool pending_v8_memory_allocated_update_;
DISALLOW_COPY_AND_ASSIGN(RendererResource);
};
} // namespace task_manager
#endif // CHROME_BROWSER_TASK_MANAGER_RENDERER_RESOURCE_H_
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