Upstream (most of) ios/web/public

ios/web/public/web_state/crw_native_content_provider.h

Index: ios/web/public/web_state/crw_native_content_provider.h
diff --git a/ios/web/public/web_state/crw_native_content_provider.h b/ios/web/public/web_state/crw_native_content_provider.h
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+// Copyright 2012 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_WEB_STATE_CRW_NATIVE_CONTENT_PROVIDER_H_
+#define IOS_WEB_PUBLIC_WEB_STATE_CRW_NATIVE_CONTENT_PROVIDER_H_
+#import <UIKit/UIKit.h>
+
+class GURL;
+
+@protocol CRWNativeContent;
+
+// Provide a controller to a native view representing a given URL.
+@protocol CRWNativeContentProvider
+
+// Returns whether the Provider has a controller for the given URL.
+- (BOOL)hasControllerForURL:(const GURL&)url;
+
+// Returns an autoreleased controller for driving a native view contained
+// within the web content area. This may return nil if the url is unsupported.
+// |url| will be of the form "chrome://foo".
+- (id<CRWNativeContent>)controllerForURL:(const GURL&)url;
+
+// Returns an autoreleased controller for driving a native view contained
+// within the web content area. The native view will contain an error page
+// with information appropriate for the problem described in |error|.
+// |isPost| indicates whether the error was for a post request.
+- (id<CRWNativeContent>)controllerForURL:(const GURL&)url
+                               withError:(NSError*)error
+                                  isPost:(BOOL)isPost;
+
+@end
+
+#endif  // IOS_WEB_PUBLIC_WEB_STATE_CRW_NATIVE_CONTENT_PROVIDER_H_