[Ozone-DRI] Fix blank screen on init

ui/ozone/platform/dri/screen_manager.cc

Index: ui/ozone/platform/dri/screen_manager.cc
diff --git a/ui/ozone/platform/dri/screen_manager.cc b/ui/ozone/platform/dri/screen_manager.cc
index 081de693ee7cc3a893d4fad1bcc78162fd205fde..6330387168ec28ab01f649b5d077495e7093f296 100644
--- a/ui/ozone/platform/dri/screen_manager.cc
+++ b/ui/ozone/platform/dri/screen_manager.cc
@@ -117,12 +117,6 @@ base::WeakPtr<HardwareDisplayController> ScreenManager::GetDisplayController(
   if (it != controllers_.end())
     return (*it)->AsWeakPtr();
 
-  // If no active controllers then pick the first controller at the location.
-  // TODO(dnicoara): Remove once async display configuration is fully supported.
-  it = FindDisplayControllerByLocation(bounds);
-  if (it != controllers_.end())
-    return (*it)->AsWeakPtr();
-
   return base::WeakPtr<HardwareDisplayController>();
 }
 
@@ -153,21 +147,6 @@ ScreenManager::FindActiveDisplayControllerByLocation(const gfx::Rect& bounds) {
   return controllers_.end();
 }
 
-ScreenManager::HardwareDisplayControllers::iterator
-ScreenManager::FindDisplayControllerByLocation(const gfx::Rect& bounds) {
-  for (HardwareDisplayControllers::iterator it = controllers_.begin();
-       it != controllers_.end();
-       ++it) {
-    gfx::Rect controller_bounds((*it)->origin(), (*it)->GetModeSize());
-    // We don't perform a strict check since content_shell will have windows
-    // smaller than the display size.
-    if (controller_bounds.Contains(bounds))
-      return it;
-  }
-
-  return controllers_.end();
-}
-
 void ScreenManager::ForceInitializationOfPrimaryDisplay() {
   LOG(WARNING) << "Forcing initialization of primary display.";
   ScopedVector<HardwareDisplayControllerInfo> displays =