Removing useless Win7 checks + standardize its use

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

 // Copyright (c) 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/views/frame/taskbar_decorator_win.h"
 
 #include <objbase.h>
 #include <shobjidl.h>
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/task_scheduler/post_task.h"
 #include "base/win/scoped_comptr.h"
 #include "base/win/scoped_gdi_object.h"
-#include "base/win/windows_version.h"
 #include "chrome/browser/profiles/profile_avatar_icon_util.h"
 #include "skia/ext/image_operations.h"
 #include "skia/ext/platform_canvas.h"
 #include "ui/gfx/icon_util.h"
 #include "ui/gfx/image/image.h"
 #include "ui/views/win/hwnd_util.h"
 
 namespace chrome {
 
 namespace {
@@ skipping 36 matching lines @@
     icon = IconUtil::CreateHICONFromSkBitmap(offscreen_bitmap);
     if (!icon.is_valid())
       return;
   }
   taskbar->SetOverlayIcon(hwnd, icon.get(), L"");
 }
 
 }  // namespace
 
 void DrawTaskbarDecoration(gfx::NativeWindow window, const gfx::Image* image) {
-  if (base::win::GetVersion() < base::win::VERSION_WIN7)
-    return;
-
   HWND hwnd = views::HWNDForNativeWindow(window);
 
   // SetOverlayIcon() does nothing if the window is not visible so testing here
   // avoids all the wasted effort of the image resizing.
   if (!::IsWindowVisible(hwnd))
     return;
 
   // Copy the image since we're going to use it on a separate thread and
   // gfx::Image isn't thread safe.
   std::unique_ptr<SkBitmap> bitmap;
   if (image) {
     bitmap.reset(new SkBitmap(
         profiles::GetAvatarIconAsSquare(*image->ToSkBitmap(), 1)));
   }
   // TODO(robliao): Annotate this task with .WithCOM() once supported.
   // https://crbug.com/662122
   base::PostTaskWithTraits(
       FROM_HERE, {base::MayBlock(), base::TaskPriority::USER_VISIBLE},
       base::Bind(&SetOverlayIcon, hwnd, base::Passed(&bitmap)));
 }
 
 }  // namespace chrome