[Ozone-DRI] Fix blank screen on init

ui/ozone/platform/dri/screen_manager.h

Index: ui/ozone/platform/dri/screen_manager.h
diff --git a/ui/ozone/platform/dri/screen_manager.h b/ui/ozone/platform/dri/screen_manager.h
index eeca56ae31e96174f868b931168226e099f67f09..72278dbac074dabfde2d45bd4c69b0da6bcc8bd2 100644
--- a/ui/ozone/platform/dri/screen_manager.h
+++ b/ui/ozone/platform/dri/screen_manager.h
@@ -57,6 +57,11 @@ class ScreenManager {
   base::WeakPtr<HardwareDisplayController> GetDisplayController(
       const gfx::Rect& bounds);
 
+  // On non CrOS builds there is no display configurator to look-up available
+  // displays and initialize the HDCs. In such cases this is called internally
+  // to initialize a display.
+  virtual void ForceInitializationOfPrimaryDisplay();
+
  private:
   typedef ScopedVector<HardwareDisplayController> HardwareDisplayControllers;
 
@@ -69,11 +74,6 @@ class ScreenManager {
   HardwareDisplayControllers::iterator FindActiveDisplayControllerByLocation(
       const gfx::Rect& bounds);
 
-  // Returns an iterator to the first controller located at |origin|. The
-  // controller may be disabled.
-  HardwareDisplayControllers::iterator FindDisplayControllerByLocation(
-      const gfx::Rect& bounds);
-
   // Perform modesetting in |controller| using |origin| and |mode|.
   bool ModesetDisplayController(HardwareDisplayController* controller,
                                 const gfx::Point& origin,
@@ -87,11 +87,6 @@ class ScreenManager {
                         uint32_t crtc,
                         uint32_t connector);
 
-  // On non CrOS builds there is no display configurator to look-up available
-  // displays and initialize the HDCs. In such cases this is called internally
-  // to initialize a display.
-  virtual void ForceInitializationOfPrimaryDisplay();
-
   DriWrapper* dri_;  // Not owned.
   ScanoutBufferGenerator* buffer_generator_;  // Not owned.
   // List of display controllers (active and disabled).