Upstream ios/web_view source code.

ios/web_view/public/criwv_web_view.h

+// Copyright 2014 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_VIEW_PUBLIC_CRIWV_WEB_VIEW_H_
+#define IOS_WEB_VIEW_PUBLIC_CRIWV_WEB_VIEW_H_
+
+#import <UIKit/UIKit.h>
+
+@protocol CRIWVWebViewDelegate;
+
+// Primary objective-c interface for web/.  Just like a UIWebView, but better.

[sdefresne, 2017/01/20 10:28:13]

UIWebView -> WKWebView?

[michaeldo, 2017/01/24 22:35:26]

Done in dep CL.

+// Concrete instances can be created through CRIWV.
+@protocol CRIWVWebView<NSObject>
+
+// The view used to display web content.
+@property(nonatomic, readonly) UIView* view;
+
+// This web view's delegate.
+@property(nonatomic, readwrite, assign) id<CRIWVWebViewDelegate> delegate;
+
+// Whether or not this web view can go backwards or forwards.
+@property(nonatomic, readonly) BOOL canGoBack;
+@property(nonatomic, readonly) BOOL canGoForward;
+
+// Whether or not this web view is loading a page.
+@property(nonatomic, readonly) BOOL isLoading;
+
+// The current URL, for display to the user.
+@property(nonatomic, readonly) NSURL* visibleURL;
+
+// The current page title.
+@property(nonatomic, readonly) NSString* pageTitle;
+
+// The current load progress, as a fraction between 0 and 1.  This value is
+// undefined if the web view is not currently loading.
+@property(nonatomic, readonly) CGFloat loadProgress;
+
+// Navigates backwards or forwards by one page.  Does nothing if the
+// corresponding |canGoBack| or |canGoForward| method returns NO.
+- (void)goBack;
+- (void)goForward;
+
+// Reloads the current page.
+- (void)reload;
+
+// Stops loading the current page.
+- (void)stopLoading;
+
+// Loads the given |url| in this web view.
+- (void)loadURL:(NSURL*)url;
+
+// Evaluates a JavaScript string.
+// The completion handler is invoked when script evaluation completes.
+- (void)evaluateJavaScript:(NSString*)javaScriptString
+         completionHandler:(void (^)(id, NSError*))completionHandler;
+
+@end
+
+#endif  // IOS_WEB_VIEW_PUBLIC_CRIWV_WEB_VIEW_H_