Enable hidpi on Linux, refactor a bit on Windows to share

content/browser/renderer_host/render_widget_host_view_browsertest.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 "base/command_line.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/path_service.h"
 #include "base/run_loop.h"
 #include "content/browser/gpu/compositor_util.h"
 #include "content/browser/gpu/gpu_data_manager_impl.h"
@@ skipping 17 matching lines @@
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "ui/base/layout.h"
 #include "ui/base/ui_base_switches.h"
 #include "ui/gfx/geometry/size_conversions.h"
 #include "ui/gfx/switches.h"
 #include "ui/gl/gl_switches.h"
 
 #if defined(OS_WIN)
 #include "base/win/windows_version.h"
-#include "ui/gfx/win/dpi.h"
 #endif
 
 namespace content {
 namespace {
 
 // Convenience macro: Short-circuit a pass for the tests where platform support
 // for forced-compositing mode (or disabled-compositing mode) is lacking.
 #define SET_UP_SURFACE_OR_PASS_TEST(wait_message)  \
   if (!SetUpSourceSurface(wait_message)) {  \
     LOG(WARNING)  \
@@ skipping 857 matching lines @@
                         testing::Values(GL_COMPOSITING, SOFTWARE_COMPOSITING));
 INSTANTIATE_TEST_CASE_P(
     GLAndSoftwareCompositing,
     CompositingRenderWidgetHostViewBrowserTestTabCaptureHighDPI,
     testing::Values(GL_COMPOSITING, SOFTWARE_COMPOSITING));
 
 #endif  // !defined(OS_ANDROID) && !defined(OS_IOS)
 
 }  // namespace
 }  // namespace content