Remove usage of FOR_EACH_OBSERVER macro in components/

components/exo/surface.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 "components/exo/surface.h"
 
 #include <utility>
 
 #include "base/callback_helpers.h"
 #include "base/logging.h"
@@ skipping 207 matching lines @@
       aura::Env::GetInstance()->context_factory()->AllocateFrameSinkId();
   factory_owner_->id_allocator_.reset(new cc::SurfaceIdAllocator());
   surface_manager_->RegisterFrameSinkId(factory_owner_->frame_sink_id_);
   factory_owner_->surface_factory_.reset(new cc::SurfaceFactory(
       factory_owner_->frame_sink_id_, surface_manager_, factory_owner_.get()));
   aura::Env::GetInstance()->context_factory()->AddObserver(this);
 }
 
 Surface::~Surface() {
   aura::Env::GetInstance()->context_factory()->RemoveObserver(this);
-  FOR_EACH_OBSERVER(SurfaceObserver, observers_, OnSurfaceDestroying(this));
+  for (SurfaceObserver& observer : observers_)
+    observer.OnSurfaceDestroying(this);
 
   window_->layer()->SetShowSolidColorContent();
 
   factory_owner_->surface_ = nullptr;
 
   // Call pending frame callbacks with a null frame time to indicate that they
   // have been cancelled.
   frame_callbacks_.splice(frame_callbacks_.end(), pending_frame_callbacks_);
   active_frame_callbacks_.splice(active_frame_callbacks_.end(),
                                  frame_callbacks_);
@@ skipping 610 matching lines @@
 
 int64_t Surface::GetPropertyInternal(const void* key,
                                      int64_t default_value) const {
   std::map<const void*, Value>::const_iterator iter = prop_map_.find(key);
   if (iter == prop_map_.end())
     return default_value;
   return iter->second.value;
 }
 
 }  // namespace exo