Add GetWindows helper that returns a vector

atom/browser/browser_linux.cc

@@ -16,9 +16,7 @@ namespace atom {
 
 void Browser::Focus() {
   // Focus on the first visible window.
-  WindowList* list = WindowList::GetInstance();
-  for (WindowList::iterator iter = list->begin(); iter != list->end(); ++iter) {
-    NativeWindow* window = *iter;
+  for (const auto& window : WindowList::GetWindows()) {
     if (window->IsVisible()) {
       window->Focus(true);
       break;

atom/browser/browser_mac.mm

@@ -204,9 +204,8 @@ std::string Browser::DockGetBadgeText() {
 }
 
 void Browser::DockHide() {
-  WindowList* list = WindowList::GetInstance();
-  for (WindowList::iterator it = list->begin(); it != list->end(); ++it)
-    [(*it)->GetNativeWindow() setCanHide:NO];
+  for (const auto& window : WindowList::GetWindows())
+    [window->GetNativeWindow() setCanHide:NO];
 
   ProcessSerialNumber psn = { 0, kCurrentProcess };
   TransformProcessType(&psn, kProcessTransformToUIElementApplication);

atom/browser/native_window.cc

@@ -104,8 +104,7 @@ NativeWindow::~NativeWindow() {
 // static
 NativeWindow* NativeWindow::FromWebContents(
     content::WebContents* web_contents) {
-  WindowList& window_list = *WindowList::GetInstance();
-  for (NativeWindow* window : window_list) {
+  for (const auto& window : WindowList::GetWindows()) {
     if (window->web_contents() == web_contents)
       return window;
   }

atom/browser/window_list.cc

@@ -26,6 +26,11 @@ WindowList* WindowList::GetInstance() {
   return instance_;
 }
 
+// static
+WindowList::WindowVector WindowList::GetWindows() {
+  return GetInstance()->windows_;
+}
+
 // static
 void WindowList::AddWindow(NativeWindow* window) {
   DCHECK(window);

atom/browser/window_list.h

@@ -19,24 +19,13 @@ class WindowListObserver;
 class WindowList {
  public:
   typedef std::vector<NativeWindow*> WindowVector;
-  typedef WindowVector::iterator iterator;
-  typedef WindowVector::const_iterator const_iterator;
-
-  // Windows are added to the list before they have constructed windows,
-  // so the |window()| member function may return NULL.
-  const_iterator begin() const { return windows_.begin(); }
-  const_iterator end() const { return windows_.end(); }
-
-  iterator begin() { return windows_.begin(); }
-  iterator end() { return windows_.end(); }
 
   bool empty() const { return windows_.empty(); }
-  size_t size() const { return windows_.size(); }
-
-  NativeWindow* get(size_t index) const { return windows_[index]; }
 
   static WindowList* GetInstance();
 
+  static WindowVector GetWindows();
+
   // Adds or removes |window| from the list it is associated with.
   static void AddWindow(NativeWindow* window);
   static void RemoveWindow(NativeWindow* window);