FeatureInfo: Remove allowed_extensions and init workarounds early

gpu/command_buffer/service/buffer_manager_unittest.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 "gpu/command_buffer/service/buffer_manager.h"
 #include "gpu/command_buffer/service/error_state_mock.h"
 #include "gpu/command_buffer/service/feature_info.h"
 #include "gpu/command_buffer/service/mocks.h"
 #include "gpu/command_buffer/service/test_helper.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gl/gl_mock.h"
 
 using ::testing::_;
 using ::testing::Return;
 using ::testing::StrictMock;
 
 namespace gpu {
 namespace gles2 {
 
 class BufferManagerTestBase : public testing::Test {
  protected:
   void SetUpBase(
       MemoryTracker* memory_tracker,
       FeatureInfo* feature_info,
       const char* extensions) {
     gl_.reset(new ::testing::StrictMock< ::gfx::MockGLInterface>());
     ::gfx::GLInterface::SetGLInterface(gl_.get());
     if (feature_info) {
       TestHelper::SetupFeatureInfoInitExpectations(gl_.get(), extensions);
-      feature_info->Initialize(NULL);
+      feature_info->Initialize();
     }
     error_state_.reset(new MockErrorState());
     manager_.reset(new BufferManager(memory_tracker, feature_info));
   }
 
   virtual void TearDown() {
     manager_->Destroy(false);
     manager_.reset();
     ::gfx::GLInterface::SetGLInterface(NULL);
     error_state_.reset();
@@ skipping 376 matching lines @@
   DoBufferData(buffer, sizeof(data3), GL_STATIC_DRAW, data3, GL_NO_ERROR);
   EXPECT_TRUE(
       buffer->GetMaxValueForRange(0, 3, GL_UNSIGNED_INT, &max_value));
   EXPECT_EQ(30u, max_value);
 }
 
 }  // namespace gles2
 }  // namespace gpu