RenderViewTests: Implement proper shutdown.

content/public/test/render_view_test.h

Index: content/public/test/render_view_test.h
diff --git a/content/public/test/render_view_test.h b/content/public/test/render_view_test.h
index 5161a3274ce953ea89e4de1cadba2af90ddff04a..5ae89cfff3f3e97c501faf464be268cb2965237e 100644
--- a/content/public/test/render_view_test.h
+++ b/content/public/test/render_view_test.h
@@ -18,6 +18,7 @@
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/WebKit/public/platform/Platform.h"
 #include "third_party/WebKit/public/web/WebFrame.h"
+#include "third_party/WebKit/public/web/WebLeakDetector.h"
 
 struct ViewMsg_Resize_Params;
 
@@ -45,7 +46,7 @@ class RendererMainPlatformDelegate;
 class RendererBlinkPlatformImplNoSandboxImpl;
 class RenderView;
 
-class RenderViewTest : public testing::Test {
+class RenderViewTest : public testing::Test, blink::WebLeakDetectorClient {
  public:
   // A special BlinkPlatformImpl class for getting rid off the dependency to the
   // sandbox, which is not available in RenderViewTest.
@@ -172,6 +173,9 @@ class RenderViewTest : public testing::Test {
 
   void TearDown() override;
 
+  // blink::WebLeakDetectorClient implementation.
+  void onLeakDetectionComplete(const Result& result) override;
+
   base::MessageLoop msg_loop_;
   scoped_ptr<FakeCompositorDependencies> compositor_deps_;
   scoped_ptr<MockRenderProcess> mock_process_;