Move the Mac Task Manager to the new backend code.

chrome/browser/task_manager/resource_provider.h

-// 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_RESOURCE_PROVIDER_H_
-#define CHROME_BROWSER_TASK_MANAGER_RESOURCE_PROVIDER_H_
-
-#include <stddef.h>
-
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/process/process_handle.h"
-#include "base/strings/string16.h"
-#include "third_party/WebKit/public/web/WebCache.h"
-
-class PrefRegistrySimple;
-class TaskManagerModel;
-
-namespace content {
-class WebContents;
-}
-
-namespace extensions {
-class Extension;
-}
-
-namespace gfx {
-class ImageSkia;
-}
-
-namespace task_manager {
-
-#define TASKMANAGER_RESOURCE_TYPE_LIST(def) \
-    def(BROWSER)         /* The main browser process. */ \
-    def(RENDERER)        /* A normal WebContents renderer process. */ \
-    def(EXTENSION)       /* An extension or app process. */ \
-    def(NOTIFICATION)    /* A notification process. */ \
-    def(GUEST)           /* A browser plugin guest process. */ \
-    def(PLUGIN)          /* A plugin process. */ \
-    def(WORKER)          /* A web worker process. */ \
-    def(NACL)            /* A NativeClient loader or broker process. */ \
-    def(UTILITY)         /* A browser utility process. */ \
-    def(ZYGOTE)          /* A Linux zygote process. */ \
-    def(SANDBOX_HELPER)  /* A sandbox helper process. */ \
-    def(GPU)             /* A graphics process. */
-
-#define TASKMANAGER_RESOURCE_TYPE_LIST_ENUM(a)   a,
-#define TASKMANAGER_RESOURCE_TYPE_LIST_AS_STRING(a)   case a: return #a;
-
-// A resource represents one row in the task manager.
-// Resources from similar processes are grouped together by the task manager.
-class Resource {
- public:
-  virtual ~Resource() {}
-
-  enum Type {
-    UNKNOWN = 0,
-    TASKMANAGER_RESOURCE_TYPE_LIST(TASKMANAGER_RESOURCE_TYPE_LIST_ENUM)
-  };
-
-  virtual base::string16 GetTitle() const = 0;
-  virtual base::string16 GetProfileName() const = 0;
-  virtual gfx::ImageSkia GetIcon() const = 0;
-  virtual base::ProcessHandle GetProcess() const = 0;
-  virtual int GetUniqueChildProcessId() const = 0;
-  virtual Type GetType() const = 0;
-  virtual int GetRoutingID() const;
-
-  virtual bool ReportsCacheStats() const;
-  virtual blink::WebCache::ResourceTypeStats GetWebCoreCacheStats() const;
-
-  virtual bool ReportsSqliteMemoryUsed() const;
-  virtual size_t SqliteMemoryUsedBytes() const;
-
-  virtual bool ReportsV8MemoryStats() const;
-  virtual size_t GetV8MemoryAllocated() const;
-  virtual size_t GetV8MemoryUsed() const;
-
-  // A helper function for ActivateProcess when selected resource refers
-  // to a Tab or other window containing web contents.  Returns NULL by
-  // default because not all resources have an associated web contents.
-  virtual content::WebContents* GetWebContents() const;
-
-  // Whether this resource does report the network usage accurately.
-  // This controls whether 0 or N/A is displayed when no bytes have been
-  // reported as being read. This is because some plugins do not report the
-  // bytes read and we don't want to display a misleading 0 value in that
-  // case.
-  virtual bool SupportNetworkUsage() const = 0;
-
-  // Called when some bytes have been read and support_network_usage returns
-  // false (meaning we do have network usage support).
-  virtual void SetSupportNetworkUsage() = 0;
-
-  // The TaskManagerModel periodically refreshes its data and call this
-  // on all live resources.
-  virtual void Refresh() {}
-
-  static const char* GetResourceTypeAsString(const Type type) {
-    switch (type) {
-      TASKMANAGER_RESOURCE_TYPE_LIST(TASKMANAGER_RESOURCE_TYPE_LIST_AS_STRING)
-      default: return "UNKNOWN";
-    }
-  }
-
- protected:
-  Resource() {}
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(Resource);
-};
-
-#undef TASKMANAGER_RESOURCE_TYPE_LIST
-#undef TASKMANAGER_RESOURCE_TYPE_LIST_ENUM
-#undef TASKMANAGER_RESOURCE_TYPE_LIST_AS_STRING
-
-// ResourceProviders are responsible for adding/removing resources to the task
-// manager. The task manager notifies the ResourceProvider that it is ready
-// to receive resource creation/termination notifications with a call to
-// StartUpdating(). At that point, the resource provider should call
-// AddResource with all the existing resources, and after that it should call
-// AddResource/RemoveResource as resources are created/terminated.
-// The provider remains the owner of the resource objects and is responsible
-// for deleting them (when StopUpdating() is called).
-// After StopUpdating() is called the provider should also stop reporting
-// notifications to the task manager.
-// Note: ResourceProviders have to be ref counted as they are used in
-// MessageLoop::InvokeLater().
-class ResourceProvider : public base::RefCountedThreadSafe<ResourceProvider> {
- public:
-  // Should return the resource associated to the specified ids, or NULL if
-  // the resource does not belong to this provider.
-  virtual Resource* GetResource(int origin_pid,
-                                int child_id,
-                                int route_id) = 0;
-  virtual void StartUpdating() = 0;
-  virtual void StopUpdating() = 0;
-
- protected:
-  friend class base::RefCountedThreadSafe<ResourceProvider>;
-
-  virtual ~ResourceProvider() {}
-};
-
-}  // namespace task_manager
-
-#endif  // CHROME_BROWSER_TASK_MANAGER_RESOURCE_PROVIDER_H_