Add support for providing an external file for extracting content.

components/dom_distiller/content/distiller_page_web_contents.cc

 // Copyright 2013 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/distiller_page_web_contents.h"
 
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/dom_distiller/content/web_contents_main_frame_observer.h"
@@ skipping 16 matching lines @@
   DCHECK(web_contents_);
 }
 
 SourcePageHandleWebContents::~SourcePageHandleWebContents() {
 }
 
 scoped_ptr<content::WebContents> SourcePageHandleWebContents::GetWebContents() {
   return web_contents_.Pass();
 }
 
+DistillerPageWebContentsFactory::DistillerPageWebContentsFactory(
+    content::BrowserContext* browser_context,
+    std::string distiller_js_script)
+    : DistillerPageFactory(),
+      browser_context_(browser_context),
+      distiller_js_script_(distiller_js_script) {
+}
+
 scoped_ptr<DistillerPage> DistillerPageWebContentsFactory::CreateDistillerPage(
     const gfx::Size& render_view_size) const {
   DCHECK(browser_context_);
   return scoped_ptr<DistillerPage>(new DistillerPageWebContents(
       browser_context_, render_view_size,
       scoped_ptr<SourcePageHandleWebContents>()));
 }
 
 scoped_ptr<DistillerPage>
 DistillerPageWebContentsFactory::CreateDistillerPageWithHandle(
@@ skipping 122 matching lines @@
 
 void DistillerPageWebContents::OnWebContentsDistillationDone(
     const GURL& page_url,
     const base::Value* value) {
   DCHECK(state_ == PAGELOAD_FAILED || state_ == EXECUTING_JAVASCRIPT);
   state_ = IDLE;
   DistillerPage::OnDistillationDone(page_url, value);
 }
 
 }  // namespace dom_distiller