Consolidate test contexts and remove unused ones

cc/test/fake_web_graphics_context_3d_unittest.cc

-// Copyright 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/compiler_specific.h"
-#include "base/memory/scoped_ptr.h"
-#include "cc/test/test_web_graphics_context_3d.h"
-#include "testing/gmock/include/gmock/gmock.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace cc {
-namespace {
-
-class ContextThatCountsMakeCurrents : public FakeWebGraphicsContext3D {
- public:
-  ContextThatCountsMakeCurrents() : make_current_count_(0) {}
-
-  // WebKit::WebGraphicsContext3D implementation.
-  virtual bool makeContextCurrent() OVERRIDE {
-    make_current_count_++;
-    return true;
-  }
-
-  int make_current_count() const { return make_current_count_; }
-
- private:
-  int make_current_count_;
-};
-
-TEST(FakeWebGraphicsContext3DTest, CreationShouldNotMakeCurrent) {
-  scoped_ptr<ContextThatCountsMakeCurrents> context(
-      new ContextThatCountsMakeCurrents);
-  EXPECT_TRUE(context.get());
-  EXPECT_EQ(0, context->make_current_count());
-}
-
-}  // namespace
-}  // namespace cc