Used use-gl=any instead of forcing osmesa for gpu browser tests.

chrome/browser/gpu_crash_browsertest.cc

 // Copyright (c) 2011 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/path_service.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
@@ skipping 17 matching lines @@
 }
 
 } // namespace
 
 class GPUCrashTest : public InProcessBrowserTest {
  protected:
   virtual void SetUpCommandLine(CommandLine* command_line) {
     EnableDOMAutomation();
     InProcessBrowserTest::SetUpCommandLine(command_line);
 
-    // OverrideGLImplementation and kDisableAcceleratedCompositing for
-    // OS_MACOSX are Taken verbatim from gpu_pixel_browsertest.cc and
-    // gpu_browsertest.cc.
-    EXPECT_TRUE(test_launcher_utils::OverrideGLImplementation(
-        command_line,
-        gfx::kGLImplementationOSMesaName));
-#if defined(OS_MACOSX)
-    // Accelerated compositing does not work with OSMesa. AcceleratedSurface
-    // assumes GL contexts are native.
-    command_line->AppendSwitch(switches::kDisableAcceleratedCompositing);
-#endif
+    // GPU tests require gpu acceleration.
+    // We do not care which GL backend is used.
+    command_line->AppendSwitchASCII(switches::kUseGL, "any");
   }
   virtual void SetUpInProcessBrowserTestFixture() {
     FilePath test_dir;
     ASSERT_TRUE(PathService::Get(chrome::DIR_TEST_DATA, &test_dir));
     gpu_test_dir_ = test_dir.AppendASCII("gpu");
   }
   FilePath gpu_test_dir_;
 };
 
 
@@ skipping 18 matching lines @@
   ui_test_utils::NavigateToURL(
       browser(),
       ui_test_utils::GetFileUrlWithQuery(
           gpu_test_dir_.AppendASCII("webgl.html"),
           "query=WEBKIT_lose_context"));
 
   std::string m;
   ASSERT_TRUE(message_queue.WaitForMessage(&m));
   EXPECT_EQ("\"SUCCESS\"", m);
 }