Enable MSVC warning for unused locals.

win8/metro_driver/chrome_app_view_ash.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 "win8/metro_driver/stdafx.h"
 #include "win8/metro_driver/chrome_app_view_ash.h"
 
 #include <corewindow.h>
 #include <shellapi.h>
 #include <windows.foundation.h>
@@ skipping 266 matching lines @@
 void RunMessageLoop(winui::Core::ICoreDispatcher* dispatcher) {
   // We're entering a nested message loop, let's allow dispatching
   // tasks while we're in there.
   base::MessageLoop::current()->SetNestableTasksAllowed(true);
 
   // Enter main core message loop. There are several ways to exit it
   // Nicely:
   // 1 - User action like ALT-F4.
   // 2 - Calling ICoreApplicationExit::Exit().
   // 3-  Posting WM_CLOSE to the core window.
-  HRESULT hr = dispatcher->ProcessEvents(
+  dispatcher->ProcessEvents(
       winui::Core::CoreProcessEventsOption
           ::CoreProcessEventsOption_ProcessUntilQuit);
 
   // Wind down the thread's chrome message loop.
   base::MessageLoop::current()->Quit();
 }
 
 // Helper to return the state of the shift/control/alt keys.
 uint32 GetKeyboardEventFlags() {
   uint32 flags = 0;
@@ skipping 470 matching lines @@
 
 void ChromeAppViewAsh::OnOpenURLOnDesktop(const base::FilePath& shortcut,
                                           const base::string16& url) {
   base::FilePath::StringType file = shortcut.value();
   SHELLEXECUTEINFO sei = { sizeof(sei) };
   sei.fMask = SEE_MASK_FLAG_LOG_USAGE;
   sei.nShow = SW_SHOWNORMAL;
   sei.lpFile = file.c_str();
   sei.lpDirectory = L"";
   sei.lpParameters = url.c_str();
-  BOOL result = ShellExecuteEx(&sei);
+  ShellExecuteEx(&sei);
 }
 
 void ChromeAppViewAsh::OnSetCursor(HCURSOR cursor) {
   ::SetCursor(cursor);
   last_cursor_ = cursor;
 }
 
 void ChromeAppViewAsh::OnDisplayFileOpenDialog(
     const base::string16& title,
     const base::string16& filter,
@@ skipping 682 matching lines @@
   mswr::ComPtr<winapp::Core::ICoreApplicationExit> app_exit;
   CheckHR(core_app.As(&app_exit));
   globals.app_exit = app_exit.Detach();
 }
 
 IFACEMETHODIMP
 ChromeAppViewFactory::CreateView(winapp::Core::IFrameworkView** view) {
   *view = mswr::Make<ChromeAppViewAsh>().Detach();
   return (*view) ? S_OK :  E_OUTOFMEMORY;
 }