Enable software compositing in renderer for win aura.

chrome/test/gpu/gpu_feature_browsertest.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 "base/command_line.h"
 #include "base/file_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/strings/stringprintf.h"
 #include "base/test/trace_event_analyzer.h"
@@ skipping 219 matching lines @@
 }
 
 class AcceleratedCompositingTest : public GpuFeatureTest {
  public:
   virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
     GpuFeatureTest::SetUpCommandLine(command_line);
     command_line->AppendSwitch(switches::kDisableAcceleratedCompositing);
   }
 };
 
-#if defined(OS_WIN) && defined(USE_AURA)
-// Compositing is always on for Windows Aura.
+#if defined(USE_AURA)
+// Compositing is always on for Aura.
 #define MAYBE_AcceleratedCompositingDisabled DISABLED_AcceleratedCompositingDisabled
 #else
 #define MAYBE_AcceleratedCompositingDisabled AcceleratedCompositingDisabled
 #endif
 
 IN_PROC_BROWSER_TEST_F(AcceleratedCompositingTest,
                        MAYBE_AcceleratedCompositingDisabled) {
 // Compositing is always on for Windows Aura.
   const base::FilePath url(FILE_PATH_LITERAL("feature_compositing.html"));
   RunEventTest(url, kSwapBuffersEvent, false);
@@ skipping 300 matching lines @@
           base::StringPrintf(
               "%d (resize offset %d): IOSurface width %d -> %d; Creates %d "
               "Expected %d", offset_i, offsets[offset_i],
               old_width, new_width, num_creates, expected_creates);
     }
   }
 }
 #endif
 
 }  // namespace anonymous