[ios] Implemented LoadHtml w/o using data:// URLs.

ios/web/web_state/ui/crw_web_controller_unittest.mm

 // 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.
 
 #import "ios/web/web_state/ui/crw_web_controller.h"
 
 #import <WebKit/WebKit.h>
 
 #include <utility>
 
@@ skipping 178 matching lines @@
 }
 
 - (void)webController:(CRWWebController*)webController
         didBlockPopup:(const web::BlockedPopupInfo&)blockedPopupInfo {
   _blockedPopupInfo.reset(new web::BlockedPopupInfo(blockedPopupInfo));
 }
 
 - (web::BlockedPopupInfo*)blockedPopupInfo {
   return _blockedPopupInfo.get();
 }
-
+- (BOOL)webController:(CRWWebController*)webController
+        shouldOpenURL:(const GURL&)URL
+      mainDocumentURL:(const GURL&)mainDocumentURL
+          linkClicked:(BOOL)linkClicked {
+  return YES;
+}
 @end
 
 @interface CountingObserver : NSObject<CRWWebControllerObserver>
 
 @property(nonatomic, readonly) int pageLoadedCount;
 @property(nonatomic, readonly) int messageCount;
 @end
 
 @implementation CountingObserver
 @synthesize pageLoadedCount = _pageLoadedCount;
@@ skipping 795 matching lines @@
 
   [web_controller() setDelegate:delegate];
   web::SimulateWKWebViewCrash(webView_);
 
   EXPECT_OCMOCK_VERIFY(delegate);
   EXPECT_FALSE([web_controller() isViewAlive]);
   [web_controller() setDelegate:nil];
 };
 
 }  // namespace