Move WebUI ownership from the RenderFrameHostManager to the RenderFrameHost.

content/browser/frame_host/render_frame_host_manager_unittest.cc

Index: content/browser/frame_host/render_frame_host_manager_unittest.cc
diff --git a/content/browser/frame_host/render_frame_host_manager_unittest.cc b/content/browser/frame_host/render_frame_host_manager_unittest.cc
index 768b59fd4fb469e06597dae1a3bf97d4a722f2ae..bac4f6df8215295e4fe88f03dc88fe333798b34d 100644
--- a/content/browser/frame_host/render_frame_host_manager_unittest.cc
+++ b/content/browser/frame_host/render_frame_host_manager_unittest.cc
@@ -65,13 +65,21 @@ class RenderFrameHostManagerTestWebUIControllerFactory
   // WebUIFactory implementation.
   WebUIController* CreateWebUIControllerForURL(WebUI* web_ui,
                                                const GURL& url) const override {
-    if (!(should_create_webui_ && HasWebUIScheme(url)))
-      return NULL;
-    return new WebUIController(web_ui);
+    // If WebUI creation is enabled for the test and this is a WebUI URL,
+    // returns a new instance.
+    if (should_create_webui_ && HasWebUIScheme(url))
+      return new WebUIController(web_ui);
+    return nullptr;
   }
 
   WebUI::TypeID GetWebUIType(BrowserContext* browser_context,
                              const GURL& url) const override {
+    // If WebUI creation is enabled for the test and this is a WebUI URL,
+    // returns a mock WebUI type.
+    if (should_create_webui_ && HasWebUIScheme(url)) {
+      return const_cast<RenderFrameHostManagerTestWebUIControllerFactory*>(
+          this);
+    }
     return WebUI::kNoWebUI;
   }