Move c/c/e/extension_set to top-level extensions/

chrome/renderer/chrome_content_renderer_client.h

Index: chrome/renderer/chrome_content_renderer_client.h
diff --git a/chrome/renderer/chrome_content_renderer_client.h b/chrome/renderer/chrome_content_renderer_client.h
index d0c497365a7ee5ef4ad7c3949071a5326975773e..8232e9bdc044171c746e4773cc1749f7b3b4b584 100644
--- a/chrome/renderer/chrome_content_renderer_client.h
+++ b/chrome/renderer/chrome_content_renderer_client.h
@@ -18,7 +18,6 @@
 #include "content/public/renderer/content_renderer_client.h"
 
 class ChromeRenderProcessObserver;
-class ExtensionSet;
 class PrescientNetworkingDispatcher;
 class RendererNetPredictor;
 class SearchBouncer;
@@ -36,6 +35,7 @@ struct WebPluginInfo;
 namespace extensions {
 class Dispatcher;
 class Extension;
+class ExtensionSet;
 class RendererPermissionsPolicyDelegate;
 }
 
@@ -185,7 +185,7 @@ class ChromeContentRendererClient : public content::ContentRendererClient {
   // extension app's extent.
   bool CrossesExtensionExtents(blink::WebFrame* frame,
                                const GURL& new_url,
-                               const ExtensionSet& extensions,
+                               const extensions::ExtensionSet& extensions,
                                bool is_extension_url,
                                bool is_initial_navigation);