Initialize GPU shader disk cache on brower thread.

content/test/run_all_unittests.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/bind.h"
 #include "base/test/launcher/unit_test_launcher.h"
 #include "content/app/mojo/mojo_init.h"
 #include "content/public/test/unittest_test_suite.h"
 #include "content/test/content_test_suite.h"
 
 #if defined(OS_ANDROID)
 #include "base/android/jni_android.h"
 #include "base/test/test_file_util.h"
 #include "content/browser/gpu/browser_gpu_channel_host_factory.h"
 #endif
 
 int main(int argc, char** argv) {
 #if defined(OS_ANDROID)
   // Register JNI bindings for android.
   base::RegisterContentUriTestUtils(base::android::AttachCurrentThread());
-
-  // Android wants to call GetChannelId() (even though GPU channels
-  // are not getting created in content_unittests).
-  content::BrowserGpuChannelHostFactory::Initialize(false);
 #endif
 #if !defined(OS_IOS)
   content::InitializeMojo();
 #endif
   content::UnitTestTestSuite test_suite(
       new content::ContentTestSuite(argc, argv));
 
   return base::LaunchUnitTests(
       argc, argv, base::Bind(&content::UnitTestTestSuite::Run,
                              base::Unretained(&test_suite)));
 }