Ensure GL initialization only happens once, and provide common init path

content/test/content_test_suite.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 "content/test/content_test_suite.h"
 
 #include "base/base_paths.h"
+#include "base/base_switches.h"
+#include "base/command_line.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "content/public/test/test_content_client_initializer.h"
 #include "content/test/test_content_client.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/resource/resource_bundle.h"
 
+#if !defined(OS_IOS)
+#include "ui/gl/gl_surface.h"
+#endif
+
 #if defined(OS_MACOSX)
 #include "base/mac/scoped_nsautorelease_pool.h"
 #endif
 
 namespace {
 
 class TestInitializationListener : public testing::EmptyTestEventListener {
  public:
   TestInitializationListener() : test_content_client_initializer_(NULL) {
   }
@@ skipping 33 matching lines @@
 #endif
 }
 
 void ContentTestSuite::Initialize() {
 #if defined(OS_MACOSX)
   base::mac::ScopedNSAutoreleasePool autorelease_pool;
 #endif
 
   ContentTestSuiteBase::Initialize();
 
+#if !defined(OS_IOS)
+  // When running in a child process for Mac sandbox tests, the sandbox exists
+  // to initialize GL, so don't do it here.
+  if (!CommandLine::ForCurrentProcess()->HasSwitch(switches::kTestChildProcess))
+    gfx::GLSurface::InitializeOneOffForTests();
+#endif
+
   testing::TestEventListeners& listeners =
       testing::UnitTest::GetInstance()->listeners();
   listeners.Append(new TestInitializationListener);
 }
 
 ContentClient* ContentTestSuite::CreateClientForInitialization() {
   return new TestContentClient();
 }
 
 }  // namespace content