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

ios/web/web_state/js/core_js_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.
 
 #include <vector>
 #import <Foundation/Foundation.h>
 
 #include "base/macros.h"
 #include "base/strings/stringprintf.h"
 #import "ios/web/public/test/web_test_with_web_state.h"
@@ skipping 222 matching lines @@
 // Tests the javascript of the url of the an image present in the DOM.
 TEST_F(CoreJsTest, LinkOfImage) {
   // A page with a large image surrounded by a link.
   static const char image[] =
       "<a href='%s'><img width=400 height=400 src='foo'></img></a>";
 
   // A page with a link to a destination URL.
   LoadHtml(base::StringPrintf(image, "http://destination"));
   id result = ExecuteJavaScript(@"__gCrWeb['getElementFromPoint'](200, 200)");
   NSDictionary* expected_result = @{
-    @"src" : @"foo",
+    @"src" : [NSString stringWithFormat:@"%sfoo", BaseUrl().c_str()],
     @"referrerPolicy" : @"default",
     @"href" : @"http://destination/",
   };
   EXPECT_NSEQ(expected_result, result);
 
   // A page with a link with some JavaScript that does not result in a NOP.
   LoadHtml(base::StringPrintf(image, "javascript:console.log('whatever')"));
   result = ExecuteJavaScript(@"__gCrWeb['getElementFromPoint'](200, 200)");
   expected_result = @{
-    @"src" : @"foo",
+    @"src" : [NSString stringWithFormat:@"%sfoo", BaseUrl().c_str()],
     @"referrerPolicy" : @"default",
     @"href" : @"javascript:console.log(",
   };
   EXPECT_NSEQ(expected_result, result);
 
   // A list of JavaScripts that result in a NOP.
   std::vector<std::string> nop_javascripts;
   nop_javascripts.push_back(";");
   nop_javascripts.push_back("void(0);");
   nop_javascripts.push_back("void(0);  void(0); void(0)");
 
   for (auto js : nop_javascripts) {
     // A page with a link with some JavaScript that results in a NOP.
     const std::string javascript = std::string("javascript:") + js;
     LoadHtml(base::StringPrintf(image, javascript.c_str()));
     result = ExecuteJavaScript(@"__gCrWeb['getElementFromPoint'](200, 200)");
     expected_result = @{
-      @"src" : @"foo",
+      @"src" : [NSString stringWithFormat:@"%sfoo", BaseUrl().c_str()],
       @"referrerPolicy" : @"default",
     };
     // Make sure the returned JSON does not have an 'href' key.
     EXPECT_NSEQ(expected_result, result);
   }
 }
 
 }  // namespace web