Revert 272611 "Add support for distilling current WebContents"

trunk/src/components/dom_distiller/content/web_contents_main_frame_observer.cc

Index: trunk/src/components/dom_distiller/content/web_contents_main_frame_observer.cc
===================================================================
--- trunk/src/components/dom_distiller/content/web_contents_main_frame_observer.cc	(revision 272703)
+++ trunk/src/components/dom_distiller/content/web_contents_main_frame_observer.cc	(working copy)
@@ -1,61 +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 "components/dom_distiller/content/web_contents_main_frame_observer.h"
-
-#include "content/public/browser/navigation_details.h"
-#include "content/public/browser/render_frame_host.h"
-#include "content/public/browser/web_contents.h"
-#include "content/public/browser/web_contents_observer.h"
-#include "content/public/browser/web_contents_user_data.h"
-
-DEFINE_WEB_CONTENTS_USER_DATA_KEY(dom_distiller::WebContentsMainFrameObserver);
-
-namespace dom_distiller {
-
-WebContentsMainFrameObserver::WebContentsMainFrameObserver(
-    content::WebContents* web_contents)
-    : is_document_loaded_in_main_frame_(false),
-      is_initialized_(false),
-      web_contents_(web_contents) {
-  content::WebContentsObserver::Observe(web_contents);
-}
-
-WebContentsMainFrameObserver::~WebContentsMainFrameObserver() {
-  CleanUp();
-}
-
-void WebContentsMainFrameObserver::DocumentLoadedInFrame(
-    int64 frame_id,
-    content::RenderViewHost* render_view_host) {
-  if (web_contents_ &&
-      frame_id == web_contents_->GetMainFrame()->GetRoutingID()) {
-    is_document_loaded_in_main_frame_ = true;
-  }
-}
-
-void WebContentsMainFrameObserver::DidNavigateMainFrame(
-    const content::LoadCommittedDetails& details,
-    const content::FrameNavigateParams& params) {
-  if (details.is_main_frame) {
-    is_document_loaded_in_main_frame_ = false;
-    is_initialized_ = true;
-  }
-}
-
-void WebContentsMainFrameObserver::RenderProcessGone(
-    base::TerminationStatus status) {
-  CleanUp();
-}
-
-void WebContentsMainFrameObserver::WebContentsDestroyed() {
-  CleanUp();
-}
-
-void WebContentsMainFrameObserver::CleanUp() {
-  content::WebContentsObserver::Observe(NULL);
-  web_contents_ = NULL;
-}
-
-}  // namespace dom_distiller