GTTF: Use a fresh TestingBrowserProcess for each test, part #4

content/browser/renderer_host/render_widget_host_unittest.cc

Index: content/browser/renderer_host/render_widget_host_unittest.cc
diff --git a/content/browser/renderer_host/render_widget_host_unittest.cc b/content/browser/renderer_host/render_widget_host_unittest.cc
index 42a3cf07cdb68d4d5849428f8e3a81792dab4fac..64c0c7cb3f6ea0669c5ee8688a246f4265cbcddf 100644
--- a/content/browser/renderer_host/render_widget_host_unittest.cc
+++ b/content/browser/renderer_host/render_widget_host_unittest.cc
@@ -16,6 +16,7 @@
 #include "content/common/notification_registrar.h"
 #include "content/common/notification_source.h"
 #include "content/common/view_messages.h"
+#include "chrome/test/testing_browser_process_test.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/gfx/canvas_skia.h"
@@ -246,7 +247,7 @@ class MockPaintingObserver : public NotificationObserver {
 
 // RenderWidgetHostTest --------------------------------------------------------
 
-class RenderWidgetHostTest : public testing::Test {
+class RenderWidgetHostTest : public TestingBrowserProcessTest {
  public:
   RenderWidgetHostTest() : process_(NULL) {
   }