Add UMA for app info dialog

chrome/browser/ui/app_list/app_context_menu.cc

 // 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/ui/app_list/app_context_menu.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
+#include "base/metrics/histogram.h"
 #include "chrome/browser/extensions/context_menu_matcher.h"
 #include "chrome/browser/extensions/menu_manager.h"
 #include "chrome/browser/prefs/incognito_mode_prefs.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/app_list/app_context_menu_delegate.h"
 #include "chrome/browser/ui/app_list/app_list_controller_delegate.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/manifest_url_handler.h"
 #include "content/public/common/context_menu_params.h"
 #include "grit/chromium_strings.h"
@@ skipping 228 matching lines @@
     delegate_->ExecuteLaunchCommand(event_flags);
   } else if (command_id == TOGGLE_PIN && controller_->GetPinnable() ==
       AppListControllerDelegate::PIN_EDITABLE) {
     if (controller_->IsAppPinned(app_id_))
       controller_->UnpinApp(app_id_);
     else
       controller_->PinApp(app_id_);
   } else if (command_id == CREATE_SHORTCUTS) {
     controller_->DoCreateShortcutsFlow(profile_, app_id_);
   } else if (command_id == SHOW_APP_INFO) {
+    UMA_HISTOGRAM_ENUMERATION("Apps.AppInfoDialogLaunched", 1, 2);

[benwells, 2014/08/04 01:41:40]

Could you define the enum now too?

[sashab, 2014/08/04 01:47:49]

Done :)

     controller_->DoShowAppInfoFlow(profile_, app_id_);
   } else if (command_id >= USE_LAUNCH_TYPE_COMMAND_START &&
              command_id < USE_LAUNCH_TYPE_COMMAND_END) {
     extensions::LaunchType launch_type = static_cast<extensions::LaunchType>(
         command_id - USE_LAUNCH_TYPE_COMMAND_START);
     // Streamlined hosted apps can only toggle between LAUNCH_TYPE_WINDOW and
     // LAUNCH_TYPE_REGULAR.
     if (CommandLine::ForCurrentProcess()->HasSwitch(
         switches::kEnableStreamlinedHostedApps)) {
       launch_type = (controller_->GetExtensionLaunchType(profile_, app_id_) ==
@@ skipping 11 matching lines @@
     extension_menu_items_->ExecuteCommand(command_id, NULL,
                                           content::ContextMenuParams());
   } else if (command_id == MENU_NEW_WINDOW) {
     controller_->CreateNewWindow(profile_, false);
   } else if (command_id == MENU_NEW_INCOGNITO_WINDOW) {
     controller_->CreateNewWindow(profile_, true);
   }
 }
 
 }  // namespace app_list