Rename some WebUI Mojo concepts to be more generic

content/renderer/web_ui_mojo.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_H_
-#define CONTENT_RENDERER_WEB_UI_MOJO_H_
-
-#include <string>
-
-#include "content/public/renderer/render_frame_observer.h"
-#include "content/public/renderer/render_view_observer.h"
-#include "content/public/renderer/render_view_observer_tracker.h"
-#include "mojo/public/cpp/system/core.h"
-
-namespace gin {
-class PerContextData;
-}
-
-namespace content {
-
-class WebUIMojoContextState;
-
-// WebUIMojo is responsible for enabling the renderer side of mojo bindings.
-// It creates (and destroys) a WebUIMojoContextState at the appropriate times
-// and handles the necessary browser messages. WebUIMojo destroys itself when
-// the RendererView it is created with is destroyed.
-class WebUIMojo
-    : public RenderViewObserver,
-      public RenderViewObserverTracker<WebUIMojo> {
- public:
-  explicit WebUIMojo(RenderView* render_view);
-
- private:
-  class MainFrameObserver : public RenderFrameObserver {
-   public:
-    explicit MainFrameObserver(WebUIMojo* web_ui_mojo);
-    ~MainFrameObserver() override;
-
-    // RenderFrameObserver overrides:
-    void WillReleaseScriptContext(v8::Local<v8::Context> context,
-                                  int world_id) override;
-    void DidFinishDocumentLoad() override;
-    // MainFrameObserver is inline owned by WebUIMojo and should not be
-    // destroyed when the main RenderFrame is deleted. Overriding the
-    // OnDestruct method allows this object to remain alive and be cleaned
-    // up as part of WebUIMojo deletion.
-    void OnDestruct() override;
-
-   private:
-    WebUIMojo* web_ui_mojo_;
-
-    DISALLOW_COPY_AND_ASSIGN(MainFrameObserver);
-  };
-
-  ~WebUIMojo() override;
-
-  void CreateContextState();
-  void DestroyContextState(v8::Local<v8::Context> context);
-
-  // Invoked when the frame finishes loading. Invokes Run() on the
-  // WebUIMojoContextState.
-  void OnDidFinishDocumentLoad();
-
-  WebUIMojoContextState* GetContextState();
-
-  // RenderViewObserver overrides:
-  void DidCreateDocumentElement(blink::WebLocalFrame* frame) override;
-  void DidClearWindowObject(blink::WebLocalFrame* frame) override;
-
-  MainFrameObserver main_frame_observer_;
-
-  DISALLOW_COPY_AND_ASSIGN(WebUIMojo);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_RENDERER_WEB_UI_MOJO_H_