Add desktop engagement metrics.

chrome/browser/ui/views/frame/browser_frame.cc

 // 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.
 
 #include "chrome/browser/ui/views/frame/browser_frame.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/debug/leak_annotations.h"
@@ skipping 201 matching lines @@
 
 void BrowserFrame::OnNativeWidgetActivationChanged(bool active) {
   if (active) {
     // When running under remote desktop, if the remote desktop client is not
     // active on the users desktop, then none of the windows contained in the
     // remote desktop will be activated.  However, NativeWidget::Activate() will
     // still bring this browser window to the foreground.  We explicitly set
     // ourselves as the last active browser window to ensure that we get treated
     // as such by the rest of Chrome.
     BrowserList::SetLastActive(browser_view_->browser());
+  } else {
+    BrowserList::NotifyBrowserNoLongerActive(browser_view_->browser());
   }
   Widget::OnNativeWidgetActivationChanged(active);
 }
 
 void BrowserFrame::OnNativeWidgetWorkspaceChanged() {
   chrome::SaveWindowWorkspace(browser_view_->browser(), GetWorkspace());
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
   BrowserList::MoveBrowsersInWorkspaceToFront(
       views::X11DesktopHandler::get()->GetWorkspace());
 #endif
@@ skipping 44 matching lines @@
     menu_model_builder_.reset(
         new SystemMenuModelBuilder(browser_view_, browser_view_->browser()));
     menu_model_builder_->Init();
   }
   return menu_model_builder_->menu_model();
 }
 
 views::View* BrowserFrame::GetNewAvatarMenuButton() {
   return browser_frame_view_->GetProfileSwitcherView();
 }