Clean the new CRWContextMenuController

ios/web/web_state/context_menu_params_utils.mm

Index: ios/web/web_state/context_menu_params_utils.mm
diff --git a/ios/web/web_state/context_menu_params_utils.mm b/ios/web/web_state/context_menu_params_utils.mm
new file mode 100644
index 0000000000000000000000000000000000000000..3acabb5e6517b4aeda8740c3f07f88ba8d76583b
--- /dev/null
+++ b/ios/web/web_state/context_menu_params_utils.mm
@@ -0,0 +1,56 @@
+// Copyright 2017 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/context_menu_params_utils.h"
+
+#include "base/strings/sys_string_conversions.h"
+#include "components/url_formatter/url_formatter.h"
+#include "ios/web/public/referrer_util.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+namespace web {
+ContextMenuParams ContextMenuParamsFromElementDictionary(
+    NSDictionary* element) {
+  ContextMenuParams params;
+  NSString* title = nil;
+  NSString* href = element[@"href"];
+  if (href) {
+    params.link_url = GURL(base::SysNSStringToUTF8(href));
+    if (params.link_url.SchemeIs(url::kJavaScriptScheme)) {
+      title = @"JavaScript";
+    } else {
+      base::string16 URLText = url_formatter::FormatUrl(params.link_url);
+      title = base::SysUTF16ToNSString(URLText);
+    }
+  }
+  NSString* src = element[@"src"];
+  if (src) {
+    params.src_url = GURL(base::SysNSStringToUTF8(src));
+    if (!title)
+      title = [src copy];
+    if ([title hasPrefix:base::SysUTF8ToNSString(url::kDataScheme)])
+      title = nil;
+  }
+  NSString* titleAttribute = element[@"title"];
+  if (titleAttribute)
+    title = titleAttribute;
+  if (title) {
+    params.menu_title.reset([title copy]);
+  }
+  NSString* referrerPolicy = element[@"referrerPolicy"];
+  if (referrerPolicy) {
+    params.referrer_policy =
+        web::ReferrerPolicyFromString(base::SysNSStringToUTF8(referrerPolicy));
+  }
+  NSString* innerText = element[@"innerText"];
+  if ([innerText length] > 0) {
+    params.link_text.reset([innerText copy]);
+  }
+  return params;
+}
+
+}  // namespace web