Make AccessibilityNodeData more compact.

content/test/accessibility_browser_test_utils.cc

 // Copyright 2013 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 "content/test/accessibility_browser_test_utils.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 39 matching lines @@
     AccessibilityNotification notification) {
   if (!IsAboutBlank() && notification_to_wait_for_ == notification)
     loop_runner_->Quit();
 }
 
 bool AccessibilityNotificationWaiter::IsAboutBlank() {
   // Skip any accessibility notifications related to "about:blank",
   // to avoid a possible race condition between the test beginning
   // listening for accessibility events and "about:blank" loading.
   const AccessibilityNodeDataTreeNode& root = GetAccessibilityNodeDataTree();
-  typedef AccessibilityNodeData::StringAttribute StringAttribute;
-  std::map<StringAttribute, string16>::const_iterator iter;
-  iter = root.string_attributes.find(AccessibilityNodeData::ATTR_DOC_URL);
-  if (iter != root.string_attributes.end()) {
-    string16 doc_url = iter->second;
-    if (doc_url == ASCIIToUTF16(kAboutBlankURL))
-      return true;
+  for (size_t i = 0; i < root.string_attributes.size(); ++i) {
+    if (root.string_attributes[i].first != AccessibilityNodeData::ATTR_DOC_URL)
+      continue;
+    const std::string& doc_url = root.string_attributes[i].second;
+    return doc_url == kAboutBlankURL;
   }
   return false;
 }
 
 }  // namespace content