Move the Mac Task Manager to the new backend code.

chrome/browser/task_manager/task_manager.h

Index: chrome/browser/task_manager/task_manager.h
diff --git a/chrome/browser/task_manager/task_manager.h b/chrome/browser/task_manager/task_manager.h
deleted file mode 100644
index 7c13130b2646e01ab8ce062fc2af18ef617c6f7b..0000000000000000000000000000000000000000
--- a/chrome/browser/task_manager/task_manager.h
+++ /dev/null
@@ -1,559 +0,0 @@
-// 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 CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_H_
-#define CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <map>
-#include <memory>
-#include <vector>
-
-#include "base/callback_forward.h"
-#include "base/gtest_prod_util.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/singleton.h"
-#include "base/observer_list.h"
-#include "base/strings/string16.h"
-#include "build/build_config.h"
-#include "chrome/browser/task_manager/resource_provider.h"
-#include "gpu/ipc/common/memory_stats.h"
-#include "third_party/WebKit/public/web/WebCache.h"
-
-// -----------------------------------------------------------------------------
-// DEPRECATED:
-// - This is currently enabled only on MacOSX, and will be removed soon (See
-//   crbug.com/528486).
-// - Please don't add any new stuff here. See the new implementation in
-//   //src/chrome/browser/task_management.
-// -----------------------------------------------------------------------------
-#if !defined(OS_MACOSX)
-#error "The old task manager is deprecated on non-macos platforms."
-#endif  // defined(OS_MACOSX)
-
-class PrefRegistrySimple;
-class PrivateWorkingSetSnapshot;
-class TaskManagerModel;
-class TaskManagerModelGpuDataManagerObserver;
-
-namespace base {
-class ProcessMetrics;
-}
-
-namespace content {
-class WebContents;
-}
-
-namespace extensions {
-class Extension;
-}
-
-namespace gfx {
-class ImageSkia;
-}
-
-namespace net {
-class URLRequest;
-}
-
-// This class is a singleton.
-class TaskManager {
- public:
-  // Returns true if the process at the specified index is the browser process.
-  bool IsBrowserProcess(int index) const;
-
-  // Terminates the process at the specified index.
-  void KillProcess(int index);
-
-  // Activates the browser tab associated with the process in the specified
-  // index.
-  void ActivateProcess(int index);
-
-  // These methods are invoked by the resource providers to add/remove resources
-  // to the Task Manager. Note that the resources are owned by the
-  // ResourceProviders and are not valid after StopUpdating() has been called
-  // on the ResourceProviders.
-  void AddResource(task_manager::Resource* resource);
-  void RemoveResource(task_manager::Resource* resource);
-
-  void OnWindowClosed();
-
-  // Invoked when a change to a resource has occurred that should cause any
-  // observers to completely refresh themselves (for example, the creation of
-  // a background resource in a process). Results in all observers receiving
-  // OnModelChanged() events.
-  void ModelChanged();
-
-  // Returns the singleton instance (and initializes it if necessary).
-  static TaskManager* GetInstance();
-
-  TaskManagerModel* model() const { return model_.get(); }
-
- private:
-  FRIEND_TEST_ALL_PREFIXES(TaskManagerTest, Basic);
-  FRIEND_TEST_ALL_PREFIXES(TaskManagerTest, Resources);
-  FRIEND_TEST_ALL_PREFIXES(TaskManagerTest, RefreshCalled);
-  FRIEND_TEST_ALL_PREFIXES(TaskManagerWindowControllerTest, Init);
-  FRIEND_TEST_ALL_PREFIXES(TaskManagerWindowControllerTest, Sort);
-  FRIEND_TEST_ALL_PREFIXES(TaskManagerWindowControllerTest,
-                           SelectionAdaptsToSorting);
-  FRIEND_TEST_ALL_PREFIXES(TaskManagerWindowControllerTest,
-                           EnsureNewPrimarySortColumn);
-  FRIEND_TEST_ALL_PREFIXES(TaskManagerWindowControllerTest,
-                           EnsureOneColumnVisible);
-
-  // Obtain an instance via GetInstance().
-  TaskManager();
-  friend struct base::DefaultSingletonTraits<TaskManager>;
-
-  ~TaskManager();
-
-  // The model used for gathering and processing task data. It is ref counted
-  // because it is passed as a parameter to MessageLoop::InvokeLater().
-  scoped_refptr<TaskManagerModel> model_;
-
-  DISALLOW_COPY_AND_ASSIGN(TaskManager);
-};
-
-class TaskManagerModelObserver {
- public:
-  virtual ~TaskManagerModelObserver() {}
-
-  // Invoked when the model has been completely changed.
-  virtual void OnModelChanged() = 0;
-
-  // Invoked when a range of items has changed.
-  virtual void OnItemsChanged(int start, int length) = 0;
-
-  // Invoked when new items are added.
-  virtual void OnItemsAdded(int start, int length) = 0;
-
-  // Invoked when a range of items has been removed.
-  virtual void OnItemsRemoved(int start, int length) = 0;
-
-  // Invoked when a range of items is to be immediately removed. It differs
-  // from OnItemsRemoved by the fact that the item is still in the task manager,
-  // so it can be queried for and found.
-  virtual void OnItemsToBeRemoved(int start, int length) {}
-
-  // Invoked when the initialization of the model has been finished and
-  // periodical updates is started. The first periodical update will be done
-  // in a few seconds. (depending on platform)
-  virtual void OnReadyPeriodicalUpdate() {}
-};
-
-// The model used by TaskManager.
-//
-// TaskManagerModel caches the values from all task_manager::Resources. This is
-// done so the UI sees a consistant view of the resources until it is told a
-// value has been updated.
-class TaskManagerModel : public base::RefCountedThreadSafe<TaskManagerModel> {
- public:
-  // (start, length)
-  typedef std::pair<int, int> GroupRange;
-
-  explicit TaskManagerModel(TaskManager* task_manager);
-
-  void AddObserver(TaskManagerModelObserver* observer);
-  void RemoveObserver(TaskManagerModelObserver* observer);
-
-  // Returns number of registered resources.
-  int ResourceCount() const;
-  // Returns number of registered groups.
-  int GroupCount() const;
-
-  // Methods to return raw resource information.
-  int GetNaClDebugStubPort(int index) const;
-  int64_t GetNetworkUsage(int index) const;
-  double GetCPUUsage(int index) const;
-  int GetIdleWakeupsPerSecond(int index) const;
-  base::ProcessId GetProcessId(int index) const;
-  base::ProcessHandle GetProcess(int index) const;
-
-  // Catchall method that calls off to the appropriate GetResourceXXX method
-  // based on |col_id|. |col_id| is an IDS_ value used to identify the column.
-  base::string16 GetResourceById(int index, int col_id) const;
-
-  // Methods to return formatted resource information.
-  const base::string16& GetResourceTitle(int index) const;
-  const base::string16& GetResourceProfileName(int index) const;
-  base::string16 GetResourceNaClDebugStubPort(int index) const;
-  base::string16 GetResourceNetworkUsage(int index) const;
-  base::string16 GetResourceCPUUsage(int index) const;
-  base::string16 GetResourcePrivateMemory(int index) const;
-  base::string16 GetResourceSharedMemory(int index) const;
-  base::string16 GetResourcePhysicalMemory(int index) const;
-  base::string16 GetResourceProcessId(int index) const;
-  base::string16 GetResourceGDIHandles(int index) const;
-  base::string16 GetResourceUSERHandles(int index) const;
-  base::string16 GetResourceWebCoreImageCacheSize(int index) const;
-  base::string16 GetResourceWebCoreScriptsCacheSize(int index) const;
-  base::string16 GetResourceWebCoreCSSCacheSize(int index) const;
-  base::string16 GetResourceVideoMemory(int index) const;
-  base::string16 GetResourceSqliteMemoryUsed(int index) const;
-  base::string16 GetResourceIdleWakeupsPerSecond(int index) const;
-  base::string16 GetResourceV8MemoryAllocatedSize(int index) const;
-
-  // Gets the private memory (in bytes) that should be displayed for the passed
-  // resource index. Caches the result since this calculation can take time on
-  // some platforms.
-  bool GetPrivateMemory(int index, size_t* result) const;
-
-  // Gets the shared memory (in bytes) that should be displayed for the passed
-  // resource index. Caches the result since this calculation can take time on
-  // some platforms.
-  bool GetSharedMemory(int index, size_t* result) const;
-
-  // Gets the physical memory (in bytes) that should be displayed for the passed
-  // resource index.
-  bool GetPhysicalMemory(int index, size_t* result) const;
-
-  // On Windows, get the current and peak number of GDI handles in use.
-  void GetGDIHandles(int index, size_t* current, size_t* peak) const;
-
-  // On Windows, get the current and peak number of USER handles in use.
-  void GetUSERHandles(int index, size_t* current, size_t* peak) const;
-
-  // Gets the statuses of webkit. Return false if the resource for the given row
-  // isn't a renderer.
-  bool GetWebCoreCacheStats(int index,
-                            blink::WebCache::ResourceTypeStats* result) const;
-
-  // Gets the GPU memory allocated of the given page.
-  bool GetVideoMemory(int index,
-                      size_t* video_memory,
-                      bool* has_duplicates) const;
-
-  // Gets the sqlite memory (in byte). Return false if the resource for the
-  // given row doesn't report information.
-  bool GetSqliteMemoryUsedBytes(int index, size_t* result) const;
-
-  // Gets the amount of memory allocated for javascript. Returns false if the
-  // resource for the given row isn't a renderer.
-  bool GetV8Memory(int index, size_t* result) const;
-
-  // Gets the amount of memory used for javascript. Returns false if the
-  // resource for the given row isn't a renderer.
-  bool GetV8MemoryUsed(int index, size_t* result) const;
-
-  // Returns true if resource for the given row can be activated.
-  bool CanActivate(int index) const;
-
-  // Returns true if the resource is first/last in its group (resources
-  // rendered by the same process are groupped together).
-  bool IsResourceFirstInGroup(int index) const;
-  bool IsResourceLastInGroup(int index) const;
-
-  // Returns icon to be used for resource (for example a favicon).
-  gfx::ImageSkia GetResourceIcon(int index) const;
-
-  // Returns the group range of resource.
-  GroupRange GetGroupRangeForResource(int index) const;
-
-  // Returns an index of groups to which the resource belongs.
-  int GetGroupIndexForResource(int index) const;
-
-  // Returns an index of resource which belongs to the |group_index|th group
-  // and which is the |index_in_group|th resource in group.
-  int GetResourceIndexForGroup(int group_index, int index_in_group) const;
-
-  // Compares values in column |col_id| and rows |row1|, |row2|.
-  // Returns -1 if value in |row1| is less than value in |row2|,
-  // 0 if they are equal, and 1 otherwise.
-  int CompareValues(int row1, int row2, int col_id) const;
-
-  // Returns the unique child process ID generated by Chromium, not the OS
-  // process id. This is used to identify processes internally and for
-  // extensions. It is not meant to be displayed to the user.
-  int GetUniqueChildProcessId(int index) const;
-
-  // Returns the type of the given resource.
-  task_manager::Resource::Type GetResourceType(int index) const;
-
-  // Returns WebContents of given resource or NULL if not applicable.
-  content::WebContents* GetResourceWebContents(int index) const;
-
-  void AddResource(task_manager::Resource* resource);
-  void RemoveResource(task_manager::Resource* resource);
-
-  void StartUpdating();
-  void StopUpdating();
-
-  // Listening involves calling StartUpdating on all resource providers. This
-  // causes all of them to subscribe to notifications and enumerate current
-  // resources. It differs from StartUpdating that it doesn't start the
-  // Refresh timer. The end result is that we have a full view of resources, but
-  // don't spend unneeded time updating, unless we have a real need to.
-  void StartListening();
-  void StopListening();
-
-  void Clear();  // Removes all items.
-
-  // Sends OnModelChanged() to all observers to inform them of significant
-  // changes to the model.
-  void ModelChanged();
-
-  // Updates the values for all rows.
-  void Refresh();
-
-  // Do a bulk repopulation of the physical_memory data on platforms where that
-  // is faster.
-  void RefreshPhysicalMemoryFromWorkingSetSnapshot();
-
-  void NotifyVideoMemoryUsageStats(
-      const gpu::VideoMemoryUsageStats& video_memory_usage_stats);
-
-  void NotifyBytesRead(const net::URLRequest& request, int64_t bytes_read);
-
-  void RegisterOnDataReadyCallback(const base::Closure& callback);
-
-  void NotifyDataReady();
-
- private:
-  friend class base::RefCountedThreadSafe<TaskManagerModel>;
-  friend class TaskManagerBrowserTest;
-  FRIEND_TEST_ALL_PREFIXES(ProcessesApiTest, ProcessesVsTaskManager);
-  FRIEND_TEST_ALL_PREFIXES(TaskManagerTest, RefreshCalled);
-  FRIEND_TEST_ALL_PREFIXES(TaskManagerWindowControllerTest,
-                           SelectionAdaptsToSorting);
-
-  enum UpdateState {
-    IDLE = 0,      // Currently not updating.
-    TASK_PENDING,  // An update task is pending.
-    STOPPING       // A update task is pending and it should stop the update.
-  };
-
-  // The delay between updates of the information (in ms).
-  // Match Activity Monitor's default refresh rate.
-  static const int kUpdateTimeMs = 2000;
-
-  // Values cached per resource. Values are validated on demand. The is_XXX
-  // members indicate if a value is valid.
-  struct PerResourceValues {
-    PerResourceValues();
-    PerResourceValues(const PerResourceValues& other);
-    ~PerResourceValues();
-
-    bool is_title_valid;
-    base::string16 title;
-
-    bool is_profile_name_valid;
-    base::string16 profile_name;
-
-    // No is_network_usage since default (0) is fine.
-    int64_t network_usage;
-
-    bool is_process_id_valid;
-    base::ProcessId process_id;
-
-    bool is_webcore_stats_valid;
-    blink::WebCache::ResourceTypeStats webcore_stats;
-
-    bool is_sqlite_memory_bytes_valid;
-    size_t sqlite_memory_bytes;
-
-    bool is_v8_memory_valid;
-    size_t v8_memory_allocated;
-    size_t v8_memory_used;
-  };
-
-  // Values cached per process. Values are validated on demand. The is_XXX
-  // members indicate if a value is valid.
-  struct PerProcessValues {
-    PerProcessValues();
-    PerProcessValues(const PerProcessValues& other);
-    ~PerProcessValues();
-
-    bool is_cpu_usage_valid;
-    double cpu_usage;
-
-    bool is_idle_wakeups_valid;
-    int idle_wakeups;
-
-    bool is_private_and_shared_valid;
-    size_t private_bytes;
-    size_t shared_bytes;
-
-    bool is_physical_memory_valid;
-    size_t physical_memory;
-
-    bool is_video_memory_valid;
-    size_t video_memory;
-    bool video_memory_has_duplicates;
-
-    bool is_gdi_handles_valid;
-    size_t gdi_handles;
-    size_t gdi_handles_peak;
-
-    bool is_user_handles_valid;
-    size_t user_handles;
-    size_t user_handles_peak;
-
-    bool is_nacl_debug_stub_port_valid;
-    int nacl_debug_stub_port;
-  };
-
-  typedef std::vector<task_manager::Resource*> ResourceList;
-  typedef std::vector<scoped_refptr<task_manager::ResourceProvider> >
-      ResourceProviderList;
-  typedef std::map<base::ProcessHandle, ResourceList> GroupMap;
-  typedef std::map<base::ProcessHandle, base::ProcessMetrics*> MetricsMap;
-  typedef std::map<task_manager::Resource*, int64_t> ResourceValueMap;
-  typedef std::map<task_manager::Resource*,
-                   PerResourceValues> PerResourceCache;
-  typedef std::map<base::ProcessHandle, PerProcessValues> PerProcessCache;
-
-  // This struct is used to exchange information between the io and ui threads.
-  struct BytesReadParam {
-    BytesReadParam(int origin_pid,
-                   int child_id,
-                   int route_id,
-                   int64_t byte_count)
-        : origin_pid(origin_pid),
-          child_id(child_id),
-          route_id(route_id),
-          byte_count(byte_count) {}
-
-    // The process ID that triggered the request.  For plugin requests this
-    // will differ from the renderer process ID.
-    int origin_pid;
-
-    // The child ID of the process this request was routed through.
-    int child_id;
-
-    int route_id;
-    int64_t byte_count;
-  };
-
-  ~TaskManagerModel();
-
-  // Callback from the timer to refresh. Invokes Refresh() as appropriate.
-  void RefreshCallback();
-
-  void RefreshVideoMemoryUsageStats();
-
-  // Returns the network usage (in bytes per seconds) for the specified
-  // resource. That's the value retrieved at the last timer's tick.
-  int64_t GetNetworkUsageForResource(task_manager::Resource* resource) const;
-
-  // Called on the UI thread when some bytes are read.
-  void BytesRead(BytesReadParam param);
-
-  void MultipleBytesRead(const std::vector<BytesReadParam>* params);
-
-  // Notifies the UI thread about all the bytes read. Allows for coalescing
-  // multiple bytes read into a single task for the UI thread. This is important
-  // for when downloading a lot of data on the IO thread, since posting a Task
-  // for each one is expensive.
-  void NotifyMultipleBytesRead();
-
-  // Called on the IO thread to start/stop updating byte counts.
-  void SetUpdatingByteCount(bool is_updating);
-
-  // Returns the network usage (in byte per second) that should be displayed for
-  // the passed |resource|.  -1 means the information is not available for that
-  // resource.
-  int64_t GetNetworkUsage(task_manager::Resource* resource) const;
-
-  // Returns the CPU usage (in %) that should be displayed for the passed
-  // |resource|.
-  double GetCPUUsage(task_manager::Resource* resource) const;
-
-  // Returns the idle wakeups that should be displayed for the passed
-  // |resource|.
-  int GetIdleWakeupsPerSecond(task_manager::Resource* resource) const;
-
-  // Given a number, this function returns the formatted string that should be
-  // displayed in the task manager's memory cell.
-  base::string16 GetMemCellText(int64_t number) const;
-
-  // Verifies the private and shared memory for |handle| is valid in
-  // |per_process_cache_|. Returns true if the data in |per_process_cache_| is
-  // valid.
-  bool CachePrivateAndSharedMemory(base::ProcessHandle handle) const;
-
-  // Verifies |webcore_stats| in |per_resource_cache_|, returning true on
-  // success.
-  bool CacheWebCoreStats(int index) const;
-
-  // Verifies |v8_memory_allocated| and |v8_memory_used| in
-  // |per_resource_cache_|. Returns true if valid, false if not valid.
-  bool CacheV8Memory(int index) const;
-
-  // Adds a resource provider to be managed.
-  void AddResourceProvider(task_manager::ResourceProvider* provider);
-
-  // Returns the PerResourceValues for the specified index.
-  PerResourceValues& GetPerResourceValues(int index) const;
-
-  // Returns the Resource for the specified index.
-  task_manager::Resource* GetResource(int index) const;
-
-  // The list of providers to the task manager. They are ref counted.
-  ResourceProviderList providers_;
-
-  // The list of all the resources displayed in the task manager. They are owned
-  // by the ResourceProviders.
-  ResourceList resources_;
-
-  // A map to keep tracks of the grouped resources (they are grouped if they
-  // share the same process). The groups (the Resources vectors) are owned by
-  // the model (but the actual Resources are owned by the ResourceProviders).
-  GroupMap group_map_;
-
-  // A map to retrieve the process metrics for a process. The ProcessMetrics are
-  // owned by the model.
-  MetricsMap metrics_map_;
-
-  // A map that keeps track of the number of bytes read per process since last
-  // tick. The Resources are owned by the ResourceProviders.
-  ResourceValueMap current_byte_count_map_;
-
-  // A map that contains the video memory usage for a process
-  gpu::VideoMemoryUsageStats video_memory_usage_stats_;
-
-  // Set to true when we've requested video stats and false once we get them.
-  bool pending_video_memory_usage_stats_update_;
-
-  // An observer waiting for video memory usage stats updates from the GPU
-  // process
-  std::unique_ptr<TaskManagerModelGpuDataManagerObserver>
-      video_memory_usage_stats_observer_;
-
-  base::ObserverList<TaskManagerModelObserver> observer_list_;
-
-  // How many calls to StartUpdating have been made without matching calls to
-  // StopUpdating.
-  int update_requests_;
-
-  // How many calls to StartListening have been made without matching calls to
-  // StopListening.
-  int listen_requests_;
-
-  // Whether we are currently in the process of updating.
-  UpdateState update_state_;
-
-  // Whether the IO thread is currently in the process of updating; accessed
-  // only on the IO thread.
-  bool is_updating_byte_count_;
-
-  // Buffer for coalescing BytesReadParam so we don't have to post a task on
-  // each NotifyBytesRead() call.
-  std::vector<BytesReadParam> bytes_read_buffer_;
-
-  std::vector<base::Closure> on_data_ready_callbacks_;
-
-  // All per-Resource values are stored here.
-  mutable PerResourceCache per_resource_cache_;
-
-  // All per-Process values are stored here.
-  mutable PerProcessCache per_process_cache_;
-
-  DISALLOW_COPY_AND_ASSIGN(TaskManagerModel);
-};
-
-#endif  // CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_H_