Switch ChromeTestSuite to the same convention as ContentTestSuite:

content/browser/renderer_host/render_widget_host_unittest.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/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/shared_memory.h"
 #include "base/timer.h"
 #include "content/browser/browser_thread.h"
 #include "content/browser/renderer_host/backing_store.h"
@@ skipping 227 matching lines @@
 
  private:
   MockRenderWidgetHost* host_;
   int tag_;
   gfx::Size size_;
 };
 
 
 // RenderWidgetHostTest --------------------------------------------------------
 
-class RenderWidgetHostTest : public TestingBrowserProcessTest {
+class RenderWidgetHostTest : public testing::Test {
  public:
   RenderWidgetHostTest() : process_(NULL) {
   }
   ~RenderWidgetHostTest() {
   }
 
  protected:
   // testing::Test
   void SetUp() {
     browser_context_.reset(new TestBrowserContext());
@@ skipping 468 matching lines @@
   // Start it again to ensure it still works.
   EXPECT_FALSE(host_->unresponsive_timer_fired());
   host_->StartHangMonitorTimeout(TimeDelta::FromMilliseconds(10));
 
   // Wait long enough for first timeout and see if it fired.
   MessageLoop::current()->PostDelayedTask(FROM_HERE,
                                           new MessageLoop::QuitTask(), 10);
   MessageLoop::current()->Run();
   EXPECT_TRUE(host_->unresponsive_timer_fired());
 }