Use of base::StringPairs appropriately in content

content/browser/accessibility/browser_accessibility.cc

 // Copyright (c) 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 "content/browser/accessibility/browser_accessibility.h"
 
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 155 matching lines @@
 }
 
 int32 BrowserAccessibility::GetRole() const {
   return GetData().role;
 }
 
 int32 BrowserAccessibility::GetState() const {
   return GetData().state;
 }
 
-const std::vector<std::pair<std::string, std::string> >&
+const BrowserAccessibility::HtmlAttributes&
 BrowserAccessibility::GetHtmlAttributes() const {
   return GetData().html_attributes;
 }
 
 gfx::Rect BrowserAccessibility::GetLocalBoundsRect() const {
   gfx::Rect bounds = GetLocation();
 
   // Walk up the parent chain. Every time we encounter a Web Area, offset
   // based on the scroll bars and then offset based on the origin of that
   // nested web area.
@@ skipping 507 matching lines @@
   if (GetRole() == ui::AX_ROLE_STATIC_TEXT)
     return static_cast<int>(GetStringAttribute(ui::AX_ATTR_VALUE).size());
 
   int len = 0;
   for (size_t i = 0; i < InternalChildCount(); ++i)
     len += InternalGetChild(i)->GetStaticTextLenRecursive();
   return len;
 }
 
 }  // namespace content