Add integration of the new heuristics

components/dom_distiller/content/distillable_page_utils.h

+// Copyright 2015 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 COMPONENTS_DOM_DISTILLER_CONTENT_DISTILLABLE_PAGE_UTILS_H_
+#define COMPONENTS_DOM_DISTILLER_CONTENT_DISTILLABLE_PAGE_UTILS_H_
+
+#include "base/callback.h"
+#include "content/public/browser/web_contents.h"
+
+namespace dom_distiller {
+
+class DistillablePageDetector;
+
+void IsOpenGraphArticle(content::WebContents* web_contents,

[nyquist, 2015/04/01 18:12:19]

When is this supposed to be called instead of IsDistillablePage? Will we do an
A/B experiment?

[cjhopman, 2015/04/01 20:59:29]

Yeah, it's not really clear here. In a bit I'll add code that actually calls
these and then it'll become more clear how these are used.

+                        base::Callback<void(bool)> callback);
+void IsDistillablePage(content::WebContents* web_contents,
+                       base::Callback<void(bool)> callback);
+// The passed detector must be alive until after the callback is called.
+void IsDistillablePageForDetector(content::WebContents* web_contents,
+                                  const DistillablePageDetector* detector,
+                                  base::Callback<void(bool)> callback);
+}
+
+#endif  // COMPONENTS_DOM_DISTILLER_CONTENT_DISTILLABLE_PAGE_UTILS_H_