Utilize TestContentClient in RenderViewTest as resources are being migrated to using grd system.

content/public/test/render_view_test.cc

Index: content/public/test/render_view_test.cc
diff --git a/content/public/test/render_view_test.cc b/content/public/test/render_view_test.cc
index 1399a0f2221fb9ddb6b0cba559b4f60636431736..b0f2570c993fd3e96d32ffd3d9ab24c10e0a73fd 100644
--- a/content/public/test/render_view_test.cc
+++ b/content/public/test/render_view_test.cc
@@ -22,6 +22,7 @@
 #include "content/renderer/renderer_main_platform_delegate.h"
 #include "content/renderer/renderer_webkitplatformsupport_impl.h"
 #include "content/test/mock_render_process.h"
+#include "content/test/test_content_client.h"
 #include "third_party/WebKit/public/platform/WebScreenInfo.h"
 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 #include "third_party/WebKit/public/web/WebHistoryItem.h"
@@ -391,7 +392,7 @@ blink::WebWidget* RenderViewTest::GetWebWidget() {
 
 
 ContentClient* RenderViewTest::CreateContentClient() {
-  return new ContentClient;
+  return new TestContentClient;
 }
 
 ContentBrowserClient* RenderViewTest::CreateContentBrowserClient() {