Componentize safe_browsing [X+1] : move the renderer part to component.

chrome/renderer/safe_browsing/phishing_classifier_delegate.h

-// Copyright (c) 2011 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.
-//
-// This class is used by the RenderView to interact with a PhishingClassifier.
-
-#ifndef CHROME_RENDERER_SAFE_BROWSING_PHISHING_CLASSIFIER_DELEGATE_H_
-#define CHROME_RENDERER_SAFE_BROWSING_PHISHING_CLASSIFIER_DELEGATE_H_
-
-#include <memory>
-
-#include "base/macros.h"
-#include "base/strings/string16.h"
-#include "content/public/renderer/render_frame_observer.h"
-#include "content/public/renderer/render_thread_observer.h"
-#include "ui/base/page_transition_types.h"
-#include "url/gurl.h"
-
-namespace safe_browsing {
-class ClientPhishingRequest;
-class PhishingClassifier;
-class Scorer;
-
-class PhishingClassifierFilter : public content::RenderThreadObserver {
- public:
-  static PhishingClassifierFilter* Create();
-  ~PhishingClassifierFilter() override;
-
-  bool OnControlMessageReceived(const IPC::Message& message) override;
-
- private:
-  PhishingClassifierFilter();
-  void OnSetPhishingModel(const std::string& model);
-
-  DISALLOW_COPY_AND_ASSIGN(PhishingClassifierFilter);
-};
-
-class PhishingClassifierDelegate : public content::RenderFrameObserver {
- public:
-  // The RenderFrame owns us.  This object takes ownership of the classifier.
-  // Note that if classifier is null, a default instance of PhishingClassifier
-  // will be used.
-  static PhishingClassifierDelegate* Create(content::RenderFrame* render_frame,
-                                            PhishingClassifier* classifier);
-  ~PhishingClassifierDelegate() override;
-
-  // Called by the RenderFrame once there is a phishing scorer available.
-  // The scorer is passed on to the classifier.
-  void SetPhishingScorer(const safe_browsing::Scorer* scorer);
-
-  // Called by the RenderFrame once a page has finished loading.  Updates the
-  // last-loaded URL and page text, then starts classification if all other
-  // conditions are met (see MaybeStartClassification for details).
-  // We ignore preliminary captures, since these happen before the page has
-  // finished loading.
-  void PageCaptured(base::string16* page_text, bool preliminary_capture);
-
-  // RenderFrameObserver implementation, public for testing.
-
-  // Called by the RenderFrame when a page has started loading in the given
-  // WebFrame.  Typically, this will cause any pending classification to be
-  // cancelled.  However, if the navigation is within the same page, we
-  // continue running the current classification.
-  void DidCommitProvisionalLoad(bool is_new_navigation,
-                                bool is_same_page_navigation) override;
-
- private:
-  friend class PhishingClassifierDelegateTest;
-
-  PhishingClassifierDelegate(content::RenderFrame* render_frame,
-                             PhishingClassifier* classifier);
-
-  enum CancelClassificationReason {
-    NAVIGATE_AWAY,
-    NAVIGATE_WITHIN_PAGE,
-    PAGE_RECAPTURED,
-    SHUTDOWN,
-    NEW_PHISHING_SCORER,
-    CANCEL_CLASSIFICATION_MAX  // Always add new values before this one.
-  };
-
-  // Cancels any pending classification and frees the page text.
-  void CancelPendingClassification(CancelClassificationReason reason);
-
-  // RenderFrameObserver implementation.
-  bool OnMessageReceived(const IPC::Message& message) override;
-  void OnDestruct() override;
-
-  // Called by the RenderFrame when it receives a StartPhishingDetection IPC
-  // from the browser.  This signals that it is ok to begin classification
-  // for the given toplevel URL.  If the URL has been fully loaded into the
-  // RenderFrame and a Scorer has been set, this will begin classification,
-  // otherwise classification will be deferred until these conditions are met.
-  void OnStartPhishingDetection(const GURL& url);
-
-  // Called when classification for the current page finishes.
-  void ClassificationDone(const ClientPhishingRequest& verdict);
-
-  // Shared code to begin classification if all conditions are met.
-  void MaybeStartClassification();
-
-  // The PhishingClassifier to use for the RenderFrame.  This is created once
-  // a scorer is made available via SetPhishingScorer().
-  std::unique_ptr<PhishingClassifier> classifier_;
-
-  // The last URL that the browser instructed us to classify,
-  // with the ref stripped.
-  GURL last_url_received_from_browser_;
-
-  // The last top-level URL that has finished loading in the RenderFrame.
-  // This corresponds to the text in classifier_page_text_.
-  GURL last_finished_load_url_;
-
-  // The transition type for the last load in the main frame.  We use this
-  // to exclude back/forward loads from classification.  Note that this is
-  // set in DidCommitProvisionalLoad(); the transition is reset after this
-  // call in the RenderFrame, so we need to save off the value.
-  ui::PageTransition last_main_frame_transition_;
-
-  // The URL of the last load that we actually started classification on.
-  // This is used to suppress phishing classification on subframe navigation
-  // and back and forward navigations in history.
-  GURL last_url_sent_to_classifier_;
-
-  // The page text that will be analyzed by the phishing classifier.  This is
-  // set by OnNavigate and cleared when the classifier finishes.  Note that if
-  // there is no Scorer yet when OnNavigate is called, or the browser has not
-  // instructed us to classify the page, the page text will be cached until
-  // these conditions are met.
-  base::string16 classifier_page_text_;
-
-  // Tracks whether we have stored anything in classifier_page_text_ for the
-  // most recent load.  We use this to distinguish empty text from cases where
-  // PageCaptured has not been called.
-  bool have_page_text_;
-
-  // Set to true if the classifier is currently running.
-  bool is_classifying_;
-
-  DISALLOW_COPY_AND_ASSIGN(PhishingClassifierDelegate);
-};
-
-}  // namespace safe_browsing
-
-#endif  // CHROME_RENDERER_SAFE_BROWSING_PHISHING_CLASSIFIER_DELEGATE_H_