Reduce FOR_EACH_OBSERVER usage in ui/

ui/accessibility/platform/ax_platform_node_win.cc

 // Copyright 2015 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 <atlbase.h>
 #include <atlcom.h>
 #include <limits.h>
 #include <oleacc.h>
 #include <stdint.h>
 
@@ skipping 881 matching lines @@
 
 //
 // IServiceProvider implementation.
 //
 
 STDMETHODIMP AXPlatformNodeWin::QueryService(
     REFGUID guidService, REFIID riid, void** object) {
   COM_OBJECT_VALIDATE_1_ARG(object);
 
   if (riid == IID_IAccessible2) {
-    FOR_EACH_OBSERVER(IAccessible2UsageObserver,
-                      GetIAccessible2UsageObserverList(),
-                      OnIAccessible2Used());
+    for (auto& observer : GetIAccessible2UsageObserverList())

[sky, 2016/10/17 15:30:55]

Please do not use auto& in any of these but the real type.

[Eric Willigers, 2016/10/18 00:02:50]

Done.

+      observer.OnIAccessible2Used();
   }
 
   if (guidService == IID_IAccessible ||
       guidService == IID_IAccessible2 ||
       guidService == IID_IAccessible2_2 ||
       guidService == IID_IAccessibleText) {
     return QueryInterface(riid, object);
   }
 
   *object = nullptr;
@@ skipping 231 matching lines @@
     ui::TextBoundaryDirection direction) {
   HandleSpecialTextOffset(text, &start_offset);
   ui::TextBoundaryType boundary = IA2TextBoundaryToTextBoundary(ia2_boundary);
   std::vector<int32_t> line_breaks;
   return static_cast<LONG>(ui::FindAccessibleTextBoundary(
       text, line_breaks, boundary, start_offset, direction,
       AX_TEXT_AFFINITY_DOWNSTREAM));
 }
 
 }  // namespace ui