Move remaining content test code into the content namespace.

content/test/test_render_view_host_factory.cc

Index: content/test/test_render_view_host_factory.cc
===================================================================
--- content/test/test_render_view_host_factory.cc	(revision 164732)
+++ content/test/test_render_view_host_factory.cc	(working copy)
@@ -11,7 +11,7 @@
 namespace content {
 
 TestRenderViewHostFactory::TestRenderViewHostFactory(
-    content::RenderProcessHostFactory* rph_factory)
+    RenderProcessHostFactory* rph_factory)
     : render_process_host_factory_(rph_factory) {
   RenderViewHostFactory::RegisterFactory(this);
 }
@@ -21,11 +21,11 @@
 }
 
 void TestRenderViewHostFactory::set_render_process_host_factory(
-    content::RenderProcessHostFactory* rph_factory) {
+    RenderProcessHostFactory* rph_factory) {
   render_process_host_factory_ = rph_factory;
 }
 
-content::RenderViewHost* TestRenderViewHostFactory::CreateRenderViewHost(
+RenderViewHost* TestRenderViewHostFactory::CreateRenderViewHost(
     SiteInstance* instance,
     RenderViewHostDelegate* delegate,
     RenderWidgetHostDelegate* widget_delegate,