Create task_manager namespace and wrap classes related to TaskManager with it.

chrome/browser/task_manager/task_manager_guest_resource_provider.cc

Index: chrome/browser/task_manager/task_manager_guest_resource_provider.cc
diff --git a/chrome/browser/task_manager/task_manager_guest_resource_provider.cc b/chrome/browser/task_manager/task_manager_guest_resource_provider.cc
deleted file mode 100644
index 16946cc37fde39726581ab7859e34f83b48851a5..0000000000000000000000000000000000000000
--- a/chrome/browser/task_manager/task_manager_guest_resource_provider.cc
+++ /dev/null
@@ -1,213 +0,0 @@
-// 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.
-
-#include "chrome/browser/task_manager/task_manager_guest_resource_provider.h"
-
-#include "base/string16.h"
-#include "chrome/browser/favicon/favicon_tab_helper.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/task_manager/task_manager_render_resource.h"
-#include "chrome/browser/task_manager/task_manager_resource_util.h"
-#include "chrome/common/chrome_notification_types.h"
-#include "content/public/browser/notification_service.h"
-#include "content/public/browser/render_process_host.h"
-#include "content/public/browser/render_view_host.h"
-#include "content/public/browser/site_instance.h"
-#include "content/public/browser/web_contents.h"
-#include "grit/generated_resources.h"
-#include "ui/base/l10n/l10n_util.h"
-#include "ui/gfx/image/image.h"
-#include "ui/gfx/image/image_skia.h"
-
-using content::RenderProcessHost;
-using content::RenderViewHost;
-using content::RenderWidgetHost;
-using content::WebContents;
-using extensions::Extension;
-
-class TaskManagerGuestResource : public TaskManagerRendererResource {
- public:
-  explicit TaskManagerGuestResource(content::RenderViewHost* render_view_host);
-  virtual ~TaskManagerGuestResource();
-
-  // TaskManager::Resource methods:
-  virtual Type GetType() const OVERRIDE;
-  virtual string16 GetTitle() const OVERRIDE;
-  virtual string16 GetProfileName() const OVERRIDE;
-  virtual gfx::ImageSkia GetIcon() const OVERRIDE;
-  virtual content::WebContents* GetWebContents() const OVERRIDE;
-  virtual const extensions::Extension* GetExtension() const OVERRIDE;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(TaskManagerGuestResource);
-};
-
-TaskManagerGuestResource::TaskManagerGuestResource(
-    RenderViewHost* render_view_host)
-    : TaskManagerRendererResource(
-          render_view_host->GetSiteInstance()->GetProcess()->GetHandle(),
-          render_view_host) {
-}
-
-TaskManagerGuestResource::~TaskManagerGuestResource() {
-}
-
-TaskManager::Resource::Type TaskManagerGuestResource::GetType() const {
-  return GUEST;
-}
-
-string16 TaskManagerGuestResource::GetTitle() const {
-  WebContents* web_contents = GetWebContents();
-  const int message_id = IDS_TASK_MANAGER_WEBVIEW_TAG_PREFIX;
-  if (web_contents) {
-    string16 title = TaskManagerResourceUtil::GetTitleFromWebContents(
-        web_contents);
-    return l10n_util::GetStringFUTF16(message_id, title);
-  }
-  return l10n_util::GetStringFUTF16(message_id, string16());
-}
-
-string16 TaskManagerGuestResource::GetProfileName() const {
-  WebContents* web_contents = GetWebContents();
-  if (web_contents) {
-    Profile* profile = Profile::FromBrowserContext(
-        web_contents->GetBrowserContext());
-    return TaskManagerResourceUtil::GetProfileNameFromInfoCache(profile);
-  }
-  return string16();
-}
-
-gfx::ImageSkia TaskManagerGuestResource::GetIcon() const {
-  WebContents* web_contents = GetWebContents();
-  if (web_contents && FaviconTabHelper::FromWebContents(web_contents)) {
-    return FaviconTabHelper::FromWebContents(web_contents)->
-        GetFavicon().AsImageSkia();
-  }
-  return gfx::ImageSkia();
-}
-
-WebContents* TaskManagerGuestResource::GetWebContents() const {
-  return WebContents::FromRenderViewHost(render_view_host());
-}
-
-const Extension* TaskManagerGuestResource::GetExtension() const {
-  return NULL;
-}
-
-TaskManagerGuestResourceProvider::
-    TaskManagerGuestResourceProvider(TaskManager* task_manager)
-    :  updating_(false),
-       task_manager_(task_manager) {
-}
-
-TaskManagerGuestResourceProvider::~TaskManagerGuestResourceProvider() {
-}
-
-TaskManager::Resource* TaskManagerGuestResourceProvider::GetResource(
-    int origin_pid,
-    int render_process_host_id,
-    int routing_id) {
-  // If an origin PID was specified then the request originated in a plugin
-  // working on the WebContents's behalf, so ignore it.
-  if (origin_pid)
-    return NULL;
-
-  for (GuestResourceMap::iterator i = resources_.begin();
-       i != resources_.end(); ++i) {
-    WebContents* contents = WebContents::FromRenderViewHost(i->first);
-    if (contents &&
-        contents->GetRenderProcessHost()->GetID() == render_process_host_id &&
-        contents->GetRenderViewHost()->GetRoutingID() == routing_id) {
-      return i->second;
-    }
-  }
-
-  return NULL;
-}
-
-void TaskManagerGuestResourceProvider::StartUpdating() {
-  DCHECK(!updating_);
-  updating_ = true;
-
-  // Add all the existing guest WebContents.
-  for (RenderProcessHost::iterator i(
-           RenderProcessHost::AllHostsIterator());
-       !i.IsAtEnd(); i.Advance()) {
-    RenderProcessHost::RenderWidgetHostsIterator iter =
-        i.GetCurrentValue()->GetRenderWidgetHostsIterator();
-    for (; !iter.IsAtEnd(); iter.Advance()) {
-      const RenderWidgetHost* widget = iter.GetCurrentValue();
-      if (widget->IsRenderView()) {
-        RenderViewHost* rvh =
-            RenderViewHost::From(const_cast<RenderWidgetHost*>(widget));
-        if (rvh->IsSubframe())
-          Add(rvh);
-      }
-    }
-  }
-
-  // Then we register for notifications to get new guests.
-  registrar_.Add(this, content::NOTIFICATION_WEB_CONTENTS_CONNECTED,
-      content::NotificationService::AllBrowserContextsAndSources());
-  registrar_.Add(this, content::NOTIFICATION_WEB_CONTENTS_DISCONNECTED,
-      content::NotificationService::AllBrowserContextsAndSources());
-}
-
-void TaskManagerGuestResourceProvider::StopUpdating() {
-  DCHECK(updating_);
-  updating_ = false;
-
-  // Unregister for notifications.
-  registrar_.Remove(this, content::NOTIFICATION_WEB_CONTENTS_CONNECTED,
-      content::NotificationService::AllBrowserContextsAndSources());
-  registrar_.Remove(this, content::NOTIFICATION_WEB_CONTENTS_DISCONNECTED,
-      content::NotificationService::AllBrowserContextsAndSources());
-
-  // Delete all the resources.
-  STLDeleteContainerPairSecondPointers(resources_.begin(), resources_.end());
-
-  resources_.clear();
-}
-
-void TaskManagerGuestResourceProvider::Add(
-    RenderViewHost* render_view_host) {
-  TaskManagerGuestResource* resource =
-      new TaskManagerGuestResource(render_view_host);
-  resources_[render_view_host] = resource;
-  task_manager_->AddResource(resource);
-}
-
-void TaskManagerGuestResourceProvider::Remove(
-    RenderViewHost* render_view_host) {
-  if (!updating_)
-    return;
-
-  GuestResourceMap::iterator iter = resources_.find(render_view_host);
-  if (iter == resources_.end())
-    return;
-
-  TaskManagerGuestResource* resource = iter->second;
-  task_manager_->RemoveResource(resource);
-  resources_.erase(iter);
-  delete resource;
-}
-
-void TaskManagerGuestResourceProvider::Observe(int type,
-    const content::NotificationSource& source,
-    const content::NotificationDetails& details) {
-  WebContents* web_contents = content::Source<WebContents>(source).ptr();
-  if (!web_contents || !web_contents->GetRenderViewHost()->IsSubframe())
-    return;
-
-  switch (type) {
-    case content::NOTIFICATION_WEB_CONTENTS_CONNECTED:
-      Add(web_contents->GetRenderViewHost());
-      break;
-    case content::NOTIFICATION_WEB_CONTENTS_DISCONNECTED:
-      Remove(web_contents->GetRenderViewHost());
-      break;
-    default:
-      NOTREACHED() << "Unexpected notification.";
-  }
-}