[Extensions] Clean up WebRequest API IO thread-related cruft.

When the Web Request API was moved to the UI thread, there was a fair
amount clean up to do be done. This CL cleans up a bit more.

Bug: 980774
Change-Id: I6a4ab52eda0508aa14c677a6fd5fddc393d3e570
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1982687
Reviewed-by: Devlin <[email protected]>
Commit-Queue: David Bertoni <[email protected]>
Cr-Commit-Position: refs/heads/master@{#728086}
diff --git a/extensions/browser/extension_function_dispatcher.h b/extensions/browser/extension_function_dispatcher.h
index 6721cee..44d5385 100644
--- a/extensions/browser/extension_function_dispatcher.h
+++ b/extensions/browser/extension_function_dispatcher.h
@@ -98,19 +98,19 @@
   void set_delegate(Delegate* delegate) { delegate_ = delegate; }
 
  private:
-  // For a given RenderFrameHost instance, UIThreadResponseCallbackWrapper
+  // For a given RenderFrameHost instance, ResponseCallbackWrapper
   // creates ExtensionFunction::ResponseCallback instances which send responses
   // to the corresponding render view in ExtensionMsg_Response messages.
   // This class tracks the lifespan of the RenderFrameHost instance, and will be
   // destroyed automatically when it goes away.
-  class UIThreadResponseCallbackWrapper;
+  class ResponseCallbackWrapper;
 
-  // Same as UIThreadResponseCallbackWrapper above, but applies to an extension
+  // Same as ResponseCallbackWrapper above, but applies to an extension
   // function from an extension Service Worker.
-  class UIThreadWorkerResponseCallbackWrapper;
+  class WorkerResponseCallbackWrapper;
 
-  // Key used to store UIThreadWorkerResponseCallbackWrapper in the map
-  // |ui_thread_response_callback_wrappers_for_worker_|.
+  // Key used to store WorkerResponseCallbackWrapper in the map
+  // |response_callback_wrappers_for_worker_|.
   struct WorkerResponseCallbackMapKey;
 
   // Helper to check whether an ExtensionFunction has the required permissions.
@@ -155,17 +155,16 @@
   // instance goes away, the corresponding entry in this map (if exists) will be
   // removed.
   typedef std::map<content::RenderFrameHost*,
-                   std::unique_ptr<UIThreadResponseCallbackWrapper>>
-      UIThreadResponseCallbackWrapperMap;
-  UIThreadResponseCallbackWrapperMap ui_thread_response_callback_wrappers_;
+                   std::unique_ptr<ResponseCallbackWrapper>>
+      ResponseCallbackWrapperMap;
+  ResponseCallbackWrapperMap response_callback_wrappers_;
 
-  using UIThreadWorkerResponseCallbackWrapperMap =
+  using WorkerResponseCallbackWrapperMap =
       std::map<WorkerResponseCallbackMapKey,
-               std::unique_ptr<UIThreadWorkerResponseCallbackWrapper>>;
+               std::unique_ptr<WorkerResponseCallbackWrapper>>;
   // TODO(lazyboy): The map entries are cleared upon RenderProcessHost shutown,
   // we should really be clearing it on service worker shutdown.
-  UIThreadWorkerResponseCallbackWrapperMap
-      ui_thread_response_callback_wrappers_for_worker_;
+  WorkerResponseCallbackWrapperMap response_callback_wrappers_for_worker_;
 };
 
 }  // namespace extensions