Rename gfx::Display/Screen to display::Display/Screen in chromecast/blimp/media

blimp/engine/session/blimp_engine_session.cc

Index: blimp/engine/session/blimp_engine_session.cc
diff --git a/blimp/engine/session/blimp_engine_session.cc b/blimp/engine/session/blimp_engine_session.cc
index dc30c4581f59e2353c0018fd9eeca31a0f95020b..3bf21099009ceb698e7e80c39e1545b96c552d6e 100644
--- a/blimp/engine/session/blimp_engine_session.cc
+++ b/blimp/engine/session/blimp_engine_session.cc
@@ -234,8 +234,8 @@ BlimpEngineSession::~BlimpEngineSession() {
 }
 
 void BlimpEngineSession::Initialize() {
-  DCHECK(!gfx::Screen::GetScreen());
-  gfx::Screen::SetScreenInstance(screen_.get());
+  DCHECK(!display::Screen::GetScreen());
+  display::Screen::SetScreenInstance(screen_.get());
 
   window_tree_host_.reset(new BlimpWindowTreeHost());