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// Copyright 2015 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_MANAGEMENT_PROVIDERS_WEB_CONTENTS_RENDERER_TASK_H_
#define CHROME_BROWSER_TASK_MANAGEMENT_PROVIDERS_WEB_CONTENTS_RENDERER_TASK_H_
#include "chrome/browser/task_management/providers/task.h"
#include "components/favicon/core/favicon_driver_observer.h"
#include "content/public/browser/navigation_entry.h"
class ProcessResourceUsage;
namespace content {
class RenderProcessHost;
class WebContents;
} // namespace content
namespace task_management {
// Defines an abstract base class for various types of renderer process tasks
// such as background contents, tab contents, ... etc.
class RendererTask : public Task,
public favicon::FaviconDriverObserver {
public:
RendererTask(const base::string16& title,
const gfx::ImageSkia* icon,
content::WebContents* web_contents,
content::RenderProcessHost* render_process_host);
~RendererTask() override;
// An abstract method that will be called when the event
// WebContentsObserver::DidNavigateMainFrame() occurs. This gives the
// freedom to concrete tasks to adjust the title however they need to before
// they set it.
virtual void UpdateTitle() = 0;
// An abstract method that will be called when the event
// FaviconDriverObserver::OnFaviconUpdated() occurs, so that concrete tasks
// can update their favicons.
virtual void UpdateFavicon() = 0;
// task_management::Task:
void Activate() override;
void Refresh(const base::TimeDelta& update_interval,
int64 refresh_flags) override;
Type GetType() const override;
int GetChildProcessUniqueID() const override;
base::string16 GetProfileName() const override;
int64 GetV8MemoryAllocated() const override;
int64 GetV8MemoryUsed() const override;
bool ReportsWebCacheStats() const override;
blink::WebCache::ResourceTypeStats GetWebCacheStats() const override;
// favicon::FaviconDriverObserver:
void OnFaviconAvailable(const gfx::Image& image) override;
void OnFaviconUpdated(favicon::FaviconDriver* favicon_driver,
bool icon_url_changed) override;
protected:
// Returns the title of the given |web_contents|.
static base::string16 GetTitleFromWebContents(
content::WebContents* web_contents);
// Returns the favicon of the given |web_contents| if any, and returns
// |nullptr| otherwise.
static const gfx::ImageSkia* GetFaviconFromWebContents(
content::WebContents* web_contents);
// Prefixes the given renderer |title| with the appropriate string based on
// whether it's an app, an extension, incognito or a background page or
// contents.
static const base::string16 PrefixRendererTitle(const base::string16& title,
bool is_app,
bool is_extension,
bool is_incognito,
bool is_background);
content::WebContents* web_contents() const { return web_contents_; }
private:
// The WebContents of the task this object represents.
content::WebContents* web_contents_;
// The render process host of the task this object represents.
content::RenderProcessHost* render_process_host_;
// The Mojo service wrapper that will provide us with the V8 memory usage and
// the WebCache resource stats of the render process represented by this
// object.
scoped_ptr<ProcessResourceUsage> renderer_resources_sampler_;
// The unique ID of the RenderProcessHost.
const int render_process_id_;
// The allocated and used V8 memory (in bytes).
int64 v8_memory_allocated_;
int64 v8_memory_used_;
// The WebKit resource cache statistics for this renderer.
blink::WebCache::ResourceTypeStats webcache_stats_;
// The profile name associated with the browser context of the render view
// host.
const base::string16 profile_name_;
DISALLOW_COPY_AND_ASSIGN(RendererTask);
};
} // namespace task_management
#endif // CHROME_BROWSER_TASK_MANAGEMENT_PROVIDERS_WEB_CONTENTS_RENDERER_TASK_H_
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