Enable --high-dpi-support by default.

chrome/browser/themes/browser_theme_pack_unittest.cc

Index: chrome/browser/themes/browser_theme_pack_unittest.cc
diff --git a/chrome/browser/themes/browser_theme_pack_unittest.cc b/chrome/browser/themes/browser_theme_pack_unittest.cc
index 18e3dc71c3c478aac53553ba2afa3878a479bc7c..590de4b38af26465c583ec9810bda2555461d45f 100644
--- a/chrome/browser/themes/browser_theme_pack_unittest.cc
+++ b/chrome/browser/themes/browser_theme_pack_unittest.cc
@@ -19,6 +19,9 @@
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/image/image_skia_rep.h"
+#if defined(OS_WIN)
+#include "ui/gfx/win/dpi.h"
+#endif
 
 using content::BrowserThread;
 using extensions::Extension;
@@ -593,6 +596,10 @@ TEST_F(BrowserThemePackTest, HiDpiThemeTest) {
   base::ScopedTempDir dir;
   ASSERT_TRUE(dir.CreateUniqueTempDir());
   base::FilePath file = dir.path().AppendASCII("theme_data.pak");
+#if defined(OS_WIN)
+  if (gfx::IsHighDPIEnabled())
+    return;
+#endif
 
   // Part 1: Build the pack from an extension.
   {