Make AccessibilityNodeData more compact.

content/browser/accessibility/browser_accessibility_manager.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_manager.h"
 
 #include "base/logging.h"
 #include "content/browser/accessibility/browser_accessibility.h"
 #include "content/common/accessibility_messages.h"
 
@@ skipping 320 matching lines @@
   // Look up the node by id. If it's not found, then either the root
   // of the tree is being swapped, or we're out of sync with the renderer
   // and this is a serious error.
   BrowserAccessibility* instance = GetFromRendererID(src.id);
   if (!instance) {
     if (src.role != AccessibilityNodeData::ROLE_ROOT_WEB_AREA)
       return false;
     instance = CreateNode(NULL, src.id, 0);
   }
 
-  if (src.bool_attributes.find(
-          AccessibilityNodeData::ATTR_UPDATE_LOCATION_ONLY) !=
-              src.bool_attributes.end()) {
-    instance->SetLocation(src.location);
-    return true;
+  // TODO(dmazzoni): avoid a linear scan here.
+  for (size_t i = 0; i < src.bool_attributes.size(); i++) {
+    if (src.bool_attributes[i].first ==
+        AccessibilityNodeData::ATTR_UPDATE_LOCATION_ONLY) {
+      instance->SetLocation(src.location);
+      return true;
+    }
   }
 
   // Update all of the node-specific data, like its role, state, name, etc.
   instance->InitializeData(src);
 
   //
   // Update the children in three steps:
   //
   // 1. Iterate over the old children and delete nodes that are no longer
   //    in the tree.
@@ skipping 54 matching lines @@
   // Keep track of what node is focused.
   if (src.role != AccessibilityNodeData::ROLE_ROOT_WEB_AREA &&
       src.role != AccessibilityNodeData::ROLE_WEB_AREA &&
       (src.state >> AccessibilityNodeData::STATE_FOCUSED & 1)) {
     SetFocus(instance, false);
   }
   return success;
 }
 
 }  // namespace content