Rename some WebUI Mojo concepts to be more generic

content/renderer/web_ui_mojo_context_state.h

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CONTENT_RENDERER_WEB_UI_MOJO_CONTEXT_STATE_H_
-#define CONTENT_RENDERER_WEB_UI_MOJO_CONTEXT_STATE_H_
-
-#include <set>
-#include <string>
-
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/scoped_vector.h"
-#include "gin/modules/module_registry_observer.h"
-#include "v8/include/v8.h"
-
-namespace blink {
-class WebFrame;
-class WebURLResponse;
-}
-
-namespace gin {
-class ContextHolder;
-struct PendingModule;
-}
-
-namespace content {
-
-class ResourceFetcher;
-class WebUIRunner;
-
-// WebUIMojoContextState manages the modules needed for mojo bindings. It does
-// this by way of gin. Non-builtin modules are downloaded by way of
-// ResourceFetchers.
-class WebUIMojoContextState : public gin::ModuleRegistryObserver {
- public:
-  WebUIMojoContextState(blink::WebFrame* frame,
-                        v8::Local<v8::Context> context);
-  ~WebUIMojoContextState() override;
-
-  void Run();
-
-  // Returns true if at least one module was added.
-  bool module_added() const { return module_added_; }
-
- private:
-  class Loader;
-
-  // Invokes FetchModule() for any modules that have not already been
-  // downloaded.
-  void FetchModules(const std::vector<std::string>& ids);
-
-  // Creates a ResourceFetcher to download |module|.
-  void FetchModule(const std::string& module);
-
-  // Callback once a module has finished downloading. Passes data to |runner_|.
-  void OnFetchModuleComplete(ResourceFetcher* fetcher,
-                             const blink::WebURLResponse& response,
-                             const std::string& data);
-
-  // gin::ModuleRegistryObserver overrides:
-  void OnDidAddPendingModule(
-      const std::string& id,
-      const std::vector<std::string>& dependencies) override;
-
-  // Frame script is executed in. Also used to download resources.
-  blink::WebFrame* frame_;
-
-  // See description above getter.
-  bool module_added_;
-
-  // Executes the script from gin.
-  scoped_ptr<WebUIRunner> runner_;
-
-  // Set of fetchers we're waiting on to download script.
-  ScopedVector<ResourceFetcher> module_fetchers_;
-
-  // Set of modules we've fetched script from.
-  std::set<std::string> fetched_modules_;
-
-  DISALLOW_COPY_AND_ASSIGN(WebUIMojoContextState);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_RENDERER_WEB_UI_MOJO_CONTEXT_STATE_H_