[WebView] initial webview-side implementation of safebrowsing

android_webview/browser/aw_safe_browsing_ui_manager.h

Index: android_webview/browser/aw_safe_browsing_ui_manager.h
diff --git a/android_webview/browser/aw_safe_browsing_ui_manager.h b/android_webview/browser/aw_safe_browsing_ui_manager.h
new file mode 100644
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+++ b/android_webview/browser/aw_safe_browsing_ui_manager.h
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+// Copyright (c) 2017 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.
+//
+// The Safe Browsing service is responsible for downloading anti-phishing and
+// anti-malware tables and checking urls against them. This is android_webview
+// specific ui_manager.
+
+#ifndef ANDROID_WEBVIEW_BROWSER_AW_SAFE_BROWSING_UI_MANAGER_H_
+#define ANDROID_WEBVIEW_BROWSER_AW_SAFE_BROWSING_UI_MANAGER_H_
+
+#include "components/safe_browsing/base_ui_manager.h"
+#include "content/public/browser/web_contents.h"
+
+namespace android_webview {
+
+class AwSafeBrowsingUIManager : public safe_browsing::BaseUIManager {
+ public:
+  class UIManagerClient {
+   public:
+    static UIManagerClient* FromWebContents(content::WebContents* web_contents);
+
+    // Whether this web contents can show an interstitial
+    virtual bool CanShowInterstitial() = 0;
+  };
+
+  // Construction needs to happen on the UI thread.
+  AwSafeBrowsingUIManager();
+
+  void DisplayBlockingPage(const UnsafeResource& resource) override;
+
+ protected:
+  ~AwSafeBrowsingUIManager() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(AwSafeBrowsingUIManager);
+};
+
+}  // namespace android_webview
+
+#endif  // ANDROID_WEBVIEW_BROWSER_AW_SAFE_BROWSING_UI_MANAGER_H_