Rename gfx::Display/Screen to display::Display/Screen in extensions

extensions/browser/api/system_display/display_info_provider.h

Index: extensions/browser/api/system_display/display_info_provider.h
diff --git a/extensions/browser/api/system_display/display_info_provider.h b/extensions/browser/api/system_display/display_info_provider.h
index 474bd39103932e72ca3c607bc46203b24aad86b7..31cd01e10627a7dbb9a9f288c9b56241adb6b58b 100644
--- a/extensions/browser/api/system_display/display_info_provider.h
+++ b/extensions/browser/api/system_display/display_info_provider.h
@@ -16,6 +16,10 @@ namespace gfx {
 class Display;
 }
 
+namespace display {
+using Display = gfx::Display;
+}
+
 namespace extensions {
 
 namespace api {
@@ -55,10 +59,10 @@ class DisplayInfoProvider {
  protected:
   DisplayInfoProvider();
 
-  // Create a DisplayUnitInfo from a gfx::Display for implementations of
+  // Create a DisplayUnitInfo from a display::Display for implementations of
   // GetAllDisplaysInfo()
   static api::system_display::DisplayUnitInfo CreateDisplayUnitInfo(
-      const gfx::Display& display,
+      const display::Display& display,
       int64_t primary_display_id);
 
  private:
@@ -67,7 +71,7 @@ class DisplayInfoProvider {
   // Update the content of the |unit| obtained for |display| using
   // platform specific method.
   virtual void UpdateDisplayUnitInfoForPlatform(
-      const gfx::Display& display,
+      const display::Display& display,
       api::system_display::DisplayUnitInfo* unit) = 0;
 
   DISALLOW_COPY_AND_ASSIGN(DisplayInfoProvider);