Rename some WebUI Mojo concepts to be more generic

content/renderer/web_ui_mojo.cc

Index: content/renderer/web_ui_mojo.cc
diff --git a/content/renderer/web_ui_mojo.cc b/content/renderer/web_ui_mojo.cc
deleted file mode 100644
index aab0af22ce4273dd88ec1b594d74a6aca3d6d537..0000000000000000000000000000000000000000
--- a/content/renderer/web_ui_mojo.cc
+++ /dev/null
@@ -1,123 +0,0 @@
-// 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.
-
-#include "content/renderer/web_ui_mojo.h"
-
-#include "content/common/view_messages.h"
-#include "content/public/renderer/render_frame.h"
-#include "content/public/renderer/render_view.h"
-#include "content/renderer/web_ui_mojo_context_state.h"
-#include "gin/per_context_data.h"
-#include "third_party/WebKit/public/web/WebKit.h"
-#include "third_party/WebKit/public/web/WebLocalFrame.h"
-#include "third_party/WebKit/public/web/WebView.h"
-#include "v8/include/v8.h"
-
-namespace content {
-
-namespace {
-
-const char kWebUIMojoContextStateKey[] = "WebUIMojoContextState";
-
-struct WebUIMojoContextStateData : public base::SupportsUserData::Data {
-  scoped_ptr<WebUIMojoContextState> state;
-};
-
-}  // namespace
-
-WebUIMojo::MainFrameObserver::MainFrameObserver(WebUIMojo* web_ui_mojo)
-    : RenderFrameObserver(RenderFrame::FromWebFrame(
-          web_ui_mojo->render_view()->GetWebView()->mainFrame())),
-      web_ui_mojo_(web_ui_mojo) {
-}
-
-WebUIMojo::MainFrameObserver::~MainFrameObserver() {
-}
-
-void WebUIMojo::MainFrameObserver::WillReleaseScriptContext(
-    v8::Local<v8::Context> context,
-    int world_id) {
-  web_ui_mojo_->DestroyContextState(context);
-}
-
-void WebUIMojo::MainFrameObserver::DidFinishDocumentLoad() {
-  web_ui_mojo_->OnDidFinishDocumentLoad();
-}
-
-void WebUIMojo::MainFrameObserver::OnDestruct() {
-}
-
-WebUIMojo::WebUIMojo(RenderView* render_view)
-    : RenderViewObserver(render_view),
-      RenderViewObserverTracker<WebUIMojo>(render_view),
-      main_frame_observer_(this) {
-}
-
-WebUIMojo::~WebUIMojo() {
-}
-
-void WebUIMojo::CreateContextState() {
-  v8::HandleScope handle_scope(blink::mainThreadIsolate());
-  blink::WebLocalFrame* frame =
-      render_view()->GetWebView()->mainFrame()->toWebLocalFrame();
-  v8::Local<v8::Context> context = frame->mainWorldScriptContext();
-  gin::PerContextData* context_data = gin::PerContextData::From(context);
-  WebUIMojoContextStateData* data = new WebUIMojoContextStateData;
-  data->state.reset(new WebUIMojoContextState(
-                        render_view()->GetWebView()->mainFrame(), context));
-  context_data->SetUserData(kWebUIMojoContextStateKey, data);
-}
-
-void WebUIMojo::DestroyContextState(v8::Local<v8::Context> context) {
-  gin::PerContextData* context_data = gin::PerContextData::From(context);
-  if (!context_data)
-    return;
-  context_data->RemoveUserData(kWebUIMojoContextStateKey);
-}
-
-void WebUIMojo::OnDidFinishDocumentLoad() {
-  v8::HandleScope handle_scope(blink::mainThreadIsolate());
-  WebUIMojoContextState* state = GetContextState();
-  if (state)
-    state->Run();
-}
-
-WebUIMojoContextState* WebUIMojo::GetContextState() {
-  blink::WebLocalFrame* frame =
-      render_view()->GetWebView()->mainFrame()->toWebLocalFrame();
-  v8::HandleScope handle_scope(blink::mainThreadIsolate());
-  v8::Local<v8::Context> context = frame->mainWorldScriptContext();
-  gin::PerContextData* context_data = gin::PerContextData::From(context);
-  if (!context_data)
-    return NULL;
-  WebUIMojoContextStateData* context_state =
-      static_cast<WebUIMojoContextStateData*>(
-          context_data->GetUserData(kWebUIMojoContextStateKey));
-  return context_state ? context_state->state.get() : NULL;
-}
-
-void WebUIMojo::DidCreateDocumentElement(blink::WebLocalFrame* frame) {
-  CreateContextState();
-}
-
-void WebUIMojo::DidClearWindowObject(blink::WebLocalFrame* frame) {
-  if (frame != render_view()->GetWebView()->mainFrame())
-    return;
-
-  // NOTE: this function may be called early on twice. From the constructor
-  // mainWorldScriptContext() may trigger this to be called. If we are created
-  // before the page is loaded (which is very likely), then on first load this
-  // is called. In the case of the latter we may have already supplied the
-  // handle to the context state so that if we destroy now the handle is
-  // lost. If this is the result of the first load then the contextstate should
-  // be empty and we don't need to destroy it.
-  WebUIMojoContextState* state = GetContextState();
-  if (state && !state->module_added())
-    return;
-
-  v8::HandleScope handle_scope(blink::mainThreadIsolate());
-  DestroyContextState(frame->mainWorldScriptContext());
-}
-
-}  // namespace content