Remove code to defer app window appearance until first paint.

extensions/browser/app_window/app_window.h

Index: extensions/browser/app_window/app_window.h
diff --git a/extensions/browser/app_window/app_window.h b/extensions/browser/app_window/app_window.h
index fdf51c2aed657d4528761e71ab768cce4cffe34c..66fdd4c1417d283093f447fb63943f384f6577b0 100644
--- a/extensions/browser/app_window/app_window.h
+++ b/extensions/browser/app_window/app_window.h
@@ -71,9 +71,6 @@ class AppWindowContents {
   // Called when the native window closes.
   virtual void NativeWindowClosed() = 0;
 
-  // Called in tests when the window is shown
-  virtual void DispatchWindowShownForTests() const = 0;
-
   // Called when the renderer notifies the browser that the window is ready.
   virtual void OnWindowReady() = 0;
 
@@ -359,10 +356,6 @@ class AppWindow : public content::WebContentsDelegate,
   // the renderer.
   void GetSerializedState(base::DictionaryValue* properties) const;
 
-  // Called by the window API when events can be sent to the window for this
-  // app.
-  void WindowEventsReady();
-
   // Notifies the window's contents that the render view is ready and it can
   // unblock resource requests.
   void NotifyRenderViewReady();
@@ -446,7 +439,6 @@ class AppWindow : public content::WebContentsDelegate,
 
   // content::WebContentsObserver implementation.
   void RenderViewCreated(content::RenderViewHost* render_view_host) override;
-  void DidFirstVisuallyNonEmptyPaint() override;
 
   // ExtensionFunctionDispatcher::Delegate implementation.
   WindowController* GetExtensionWindowController() const override;
@@ -545,19 +537,9 @@ class AppWindow : public content::WebContentsDelegate,
   // Bit field of FullscreenType.
   int fullscreen_types_;
 
-  // Show has been called, so the window should be shown once the first visually
-  // non-empty paint occurs.
-  bool show_on_first_paint_;
-
-  // The first visually non-empty paint has completed.
-  bool first_paint_complete_;
-
   // Whether the window has been shown or not.
   bool has_been_shown_;
 
-  // Whether events can be sent to the window.
-  bool can_send_events_;
-
   // Whether the window is hidden or not. Hidden in this context means actively
   // by the chrome.app.window API, not in an operating system context. For
   // example windows which are minimized are not hidden, and windows which are
@@ -566,9 +548,6 @@ class AppWindow : public content::WebContentsDelegate,
   // hidden, are considered hidden.
   bool is_hidden_;
 
-  // Whether the delayed Show() call was for an active or inactive window.
-  ShowType delayed_show_type_;
-
   // Cache the desired value of the always-on-top property. When windows enter
   // fullscreen or overlap the Windows taskbar, this property will be
   // automatically and silently switched off for security reasons. It is