Remove usage of FOR_EACH_OBSERVER macro in mash/

mash/browser/browser.cc

 // Copyright 2016 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 "mash/browser/browser.h"
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 187 matching lines @@
     Tab* tab = new Tab(std::move(view), this);
     // We won't have a WindowTree until we're added to a view hierarchy.
     if (container_) {
       ui::Window* window = container_->window_tree()->NewWindow();
       container_->AddChild(window);
       tab->SetWindow(window);
     }
     AddObserver(tab);
     tabs_.push_back(tab);
     tab_container_->AddChildView(tab);
-    FOR_EACH_OBSERVER(TabStripObserver, observers_, OnTabAdded(tab));
+    for (auto& observer : observers_)
+      observer.OnTabAdded(tab);
     SelectTab(tab);
   }
 
   void CloseTabForView(navigation::View* view) {
     for (auto it = tabs_.begin(); it != tabs_.end(); ++it) {
       Tab* tab = *it;
       if (tab->view() == view) {
         CloseTab(tab);
         break;
       }
@@ skipping 10 matching lines @@
     RemoveObserver(tab);
     tab_container_->RemoveChildView(tab);
     if (tab->selected()) {
       int next_selected_index = selected_index_;
       if (selected_index_ == static_cast<int>(tabs_.size()))
         --next_selected_index;
       if (next_selected_index >= 0)
         SelectTab(tabs_[next_selected_index]);
     }
     Layout();
-    FOR_EACH_OBSERVER(TabStripObserver, observers_, OnTabRemoved(tab));
+    for (auto& observer : observers_)
+      observer.OnTabRemoved(tab);
     delete tab;
   }
 
   bool empty() const { return tabs_.empty(); }
 
   void SelectTab(Tab* tab) {
     auto it = std::find(tabs_.begin(), tabs_.end(), tab);
     DCHECK(it != tabs_.end());
     selected_index_ = it - tabs_.begin();
-    FOR_EACH_OBSERVER(TabStripObserver, observers_, OnTabSelected(tab));
+    for (auto& observer : observers_)
+      observer.OnTabSelected(tab);
   }
   Tab* selected_tab() {
     return selected_index_ != -1 ? tabs_[selected_index_] : nullptr;
   }
 
   void AddObserver(TabStripObserver* observer) {
     observers_.AddObserver(observer);
   }
   void RemoveObserver(TabStripObserver* observer) {
     observers_.RemoveObserver(observer);
@@ skipping 635 matching lines @@
   AddWindow(window);
 }
 
 void Browser::Create(const shell::Identity& remote_identity,
                      mojom::LaunchableRequest request) {
   bindings_.AddBinding(this, std::move(request));
 }
 
 }  // namespace browser
 }  // namespace mash