chrome/browser/task_management/providers/web_contents/renderer_task.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_TASK_MANAGEMENT_PROVIDERS_WEB_CONTENTS_RENDERER_TASK_H_
   6 #define CHROME_BROWSER_TASK_MANAGEMENT_PROVIDERS_WEB_CONTENTS_RENDERER_TASK_H_
   7
   8 #include "chrome/browser/task_management/providers/task.h"
   9 #include "components/favicon/core/favicon_driver_observer.h"
  10 #include "content/public/browser/navigation_entry.h"
  11
  12 class ProcessResourceUsage;
  13
  14 namespace content {
  15 class RenderProcessHost;
  16 class WebContents;
  17 } // namespace content
  18
  19 namespace task_management {
  20
  21 // Defines an abstract base class for various types of renderer process tasks
  22 // such as background contents, tab contents, ... etc.
  23 class RendererTask : public Task,
  24                      public favicon::FaviconDriverObserver {
  25  public:
  26   RendererTask(const base::string16& title,
  27                const gfx::ImageSkia* icon,
  28                content::WebContents* web_contents,
  29                content::RenderProcessHost* render_process_host);
  30   ~RendererTask() override;
  31
  32   // An abstract method that will be called when the event
  33   // WebContentsObserver::DidNavigateMainFrame() occurs. This gives the
  34   // freedom to concrete tasks to adjust the title however they need to before
  35   // they set it.
  36   virtual void UpdateTitle() = 0;
  37
  38   // An abstract method that will be called when the event
  39   // FaviconDriverObserver::OnFaviconUpdated() occurs, so that concrete tasks
  40   // can update their favicons.
  41   virtual void UpdateFavicon() = 0;
  42
  43   // task_management::Task:
  44   void Activate() override;
  45   void Refresh(const base::TimeDelta& update_interval,
  46                int64 refresh_flags) override;
  47   Type GetType() const override;
  48   int GetChildProcessUniqueID() const override;
  49   base::string16 GetProfileName() const override;
  50   int64 GetV8MemoryAllocated() const override;
  51   int64 GetV8MemoryUsed() const override;
  52   bool ReportsWebCacheStats() const override;
  53   blink::WebCache::ResourceTypeStats GetWebCacheStats() const override;
  54
  55   // favicon::FaviconDriverObserver:
  56   void OnFaviconAvailable(const gfx::Image& image) override;
  57   void OnFaviconUpdated(favicon::FaviconDriver* favicon_driver,
  58                         bool icon_url_changed) override;
  59
  60  protected:
  61   // Returns the title of the given |web_contents|.
  62   static base::string16 GetTitleFromWebContents(
  63       content::WebContents* web_contents);
  64
  65   // Returns the favicon of the given |web_contents| if any, and returns
  66   // |nullptr| otherwise.
  67   static const gfx::ImageSkia* GetFaviconFromWebContents(
  68       content::WebContents* web_contents);
  69
  70   // Prefixes the given renderer |title| with the appropriate string based on
  71   // whether it's an app, an extension, incognito or a background page or
  72   // contents.
  73   static const base::string16 PrefixRendererTitle(const base::string16& title,
  74                                                   bool is_app,
  75                                                   bool is_extension,
  76                                                   bool is_incognito,
  77                                                   bool is_background);
  78
  79   content::WebContents* web_contents() const { return web_contents_; }
  80
  81  private:
  82   // The WebContents of the task this object represents.
  83   content::WebContents* web_contents_;
  84
  85   // The render process host of the task this object represents.
  86   content::RenderProcessHost* render_process_host_;
  87
  88   // The Mojo service wrapper that will provide us with the V8 memory usage and
  89   // the WebCache resource stats of the render process represented by this
  90   // object.
  91   scoped_ptr<ProcessResourceUsage> renderer_resources_sampler_;
  92
  93   // The unique ID of the RenderProcessHost.
  94   const int render_process_id_;
  95
  96   // The allocated and used V8 memory (in bytes).
  97   int64 v8_memory_allocated_;
  98   int64 v8_memory_used_;
  99
 100   // The WebKit resource cache statistics for this renderer.
 101   blink::WebCache::ResourceTypeStats webcache_stats_;
 102
 103   // The profile name associated with the browser context of the render view
 104   // host.
 105   const base::string16 profile_name_;
 106
 107   DISALLOW_COPY_AND_ASSIGN(RendererTask);
 108 };
 109
 110 }  // namespace task_management
 111
 112 #endif  // CHROME_BROWSER_TASK_MANAGEMENT_PROVIDERS_WEB_CONTENTS_RENDERER_TASK_H_