Upstream ios/web/web_state/ui support classes

ios/web/web_state/ui/crw_debug_web_view.h

Index: ios/web/web_state/ui/crw_debug_web_view.h
diff --git a/ios/web/web_state/ui/crw_debug_web_view.h b/ios/web/web_state/ui/crw_debug_web_view.h
new file mode 100644
index 0000000000000000000000000000000000000000..872d18fe903c24c848c591cce8518af040046748
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+++ b/ios/web/web_state/ui/crw_debug_web_view.h
@@ -0,0 +1,61 @@
+// Copyright 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.
+#ifndef IOS_WEB_WEB_STATE_UI_CRW_DEBUG_WEB_VIEW_H_
+#define IOS_WEB_WEB_STATE_UI_CRW_DEBUG_WEB_VIEW_H_
+
+// This class is only available in debug mode. It uses private API.
+#if !defined(NDEBUG)
+
+#import <UIKit/UIKit.h>
+
+// All part of webkit API, but it is private on iOS.
+@class WebFrame;
+@class WebScriptCallFrame;
+@class WebView;
+
+@protocol CRWDebugWebView_WebViewScriptDelegate
+@optional
+// Called when a javascript statement want to write on the console.
+- (void)webView:(WebView*)webView addMessageToConsole:(NSDictionary*)dict;
+
+// Some source was parsed, establishing a "source ID" (>= 0) for future
+// reference
+- (void)webView:(WebView*)webView
+    didParseSource:(NSString*)source
+    baseLineNumber:(NSUInteger)lineNumber
+           fromURL:(NSURL*)url
+          sourceId:(int)sid
+       forWebFrame:(WebFrame*)webFrame;
+
+// Called if a loaded javascript file fail to parse.
+- (void)webView:(WebView*)webView
+    failedToParseSource:(NSString*)source
+         baseLineNumber:(unsigned)lineNumber
+                fromURL:(NSURL*)url
+              withError:(NSError*)error
+            forWebFrame:(WebFrame*)webFrame;
+
+// Called if an exception is raised in Javascript.
+- (void)webView:(WebView*)webView
+    exceptionWasRaised:(WebScriptCallFrame*)frame
+              sourceId:(int)sid
+                  line:(int)lineno
+           forWebFrame:(WebFrame*)webFrame;
+
+@end
+
+// Simply use like a regular UIWebView. It just logs javascript information on
+// the console.
+@interface CRWDebugWebView : UIWebView
+
+// Webview delegate API, which the superclass is. Used to set the script
+// delegate on the same webview the superclass is delegate of.
+- (void)webView:(id)sender
+    didClearWindowObject:(id)windowObject
+                forFrame:(WebFrame*)frame;
+
+@end
+
+#endif  // !defined(NDEBUG)
+#endif  // IOS_WEB_WEB_STATE_UI_CRW_DEBUG_WEB_VIEW_H_