[Mac] Update fullscreen state when window is fullscreened natively.

chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm

Index: chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm
diff --git a/chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm b/chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm
index ecd390eff3b41b9a1d54f83c8de52b362bc64993..521f095bc950c25e21fbd056b6138c293966fa77 100644
--- a/chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm
+++ b/chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm
@@ -160,12 +160,12 @@ std::vector<gfx::Rect> CalculateNonDraggableRegions(
 
 - (void)windowDidEnterFullScreen:(NSNotification*)notification {
   if (appWindow_)
-    appWindow_->WindowDidFinishResize();
+    appWindow_->WindowDidEnterFullscreen();
 }
 
 - (void)windowDidExitFullScreen:(NSNotification*)notification {
   if (appWindow_)
-    appWindow_->WindowDidFinishResize();
+    appWindow_->WindowDidExitFullscreen();
 }
 
 - (void)windowDidMove:(NSNotification*)notification {
@@ -825,13 +825,6 @@ void NativeAppWindowCocoa::WindowDidFinishResize() {
   else if (NSEqualPoints(frame.origin, screen.origin))
     is_maximized_ = true;
 
-  // Update |is_fullscreen_| if needed.
-  is_fullscreen_ = ([window() styleMask] & NSFullScreenWindowMask) != 0;
-  // If not fullscreen but the window is constrained, disable the fullscreen UI
-  // control.
-  if (!is_fullscreen_ && !shows_fullscreen_controls_)
-    SetFullScreenCollectionBehavior(window(), false);
-
   UpdateRestoredBounds();
 }
 
@@ -853,6 +846,21 @@ void NativeAppWindowCocoa::WindowDidDeminiaturize() {
   app_window_->OnNativeWindowChanged();
 }
 
+void NativeAppWindowCocoa::WindowDidEnterFullscreen() {
+  is_fullscreen_ = true;
+  app_window_->OSFullscreen();
+  app_window_->OnNativeWindowChanged();
+}
+
+void NativeAppWindowCocoa::WindowDidExitFullscreen() {
+  is_fullscreen_ = false;
+  if (!shows_fullscreen_controls_)
+    SetFullScreenCollectionBehavior(window(), false);
+
+  app_window_->Restore();
+  app_window_->OnNativeWindowChanged();
+}
+
 void NativeAppWindowCocoa::WindowWillZoom() {
   // See top of file NOTE: Maximize and Zoom.
   if (IsMaximized())