Move Render(View|Widget)Host and associated classes to content namespace.

content/browser/debugger/devtools_manager_unittest.cc

Index: content/browser/debugger/devtools_manager_unittest.cc
diff --git a/content/browser/debugger/devtools_manager_unittest.cc b/content/browser/debugger/devtools_manager_unittest.cc
index 0fd4d3d7e096e74cba081b74d09c241077ca25f2..375229603a22c90a3610e82bbb4587c7038b7abe 100644
--- a/content/browser/debugger/devtools_manager_unittest.cc
+++ b/content/browser/debugger/devtools_manager_unittest.cc
@@ -180,7 +180,7 @@ TEST_F(DevToolsManagerTest, ForwardMessageToClient) {
 }
 
 TEST_F(DevToolsManagerTest, NoUnresponsiveDialogInInspectedTab) {
-  TestRenderViewHost* inspected_rvh = rvh();
+  content::TestRenderViewHost* inspected_rvh = rvh();
   inspected_rvh->set_render_view_created(true);
   EXPECT_FALSE(contents()->GetDelegate());
   TestWebContentsDelegate delegate;