Upstream (most of) ios/web/public

ios/web/public/interstitials/web_interstitial_delegate.h

Index: ios/web/public/interstitials/web_interstitial_delegate.h
diff --git a/ios/web/public/interstitials/web_interstitial_delegate.h b/ios/web/public/interstitials/web_interstitial_delegate.h
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+// 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 IOS_WEB_PUBLIC_INTERSTITIALS_WEB_INTERSTITIAL_DELEGATE_H_
+#define IOS_WEB_PUBLIC_INTERSTITIALS_WEB_INTERSTITIAL_DELEGATE_H_
+
+#include <string>
+
+namespace web {
+
+// Controls and provides the html for an interstitial page. The delegate is
+// owned by the WebInterstitial.
+class WebInterstitialDelegate {
+ public:
+  virtual ~WebInterstitialDelegate() {}
+
+  // Returns the HTML that should be displayed in the page.
+  virtual std::string GetHtmlContents() const = 0;
+
+  // Called when the interstitial is proceeded or cancelled. Note that this may
+  // be called directly even if the embedder didn't call Proceed or DontProceed
+  // on WebInterstitial, since navigations etc may cancel them.
+  virtual void OnProceed() {}
+  virtual void OnDontProceed() {}
+
+  // Invoked when a WebInterstitial receives a command via JavaScript.
+  virtual void CommandReceived(const std::string& command) {}
+};
+
+}  // namespace web
+
+#endif  // IOS_WEB_PUBLIC_INTERSTITIALS_WEB_INTERSTITIAL_DELEGATE_H_