Read EDID for the 1st display for startup

ui/ozone/common/native_display_delegate_ozone.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/ozone/common/native_display_delegate_ozone.h"
 
 #include "base/logging.h"
 #include "ui/ozone/common/display_snapshot_proxy.h"
 #include "ui/ozone/common/display_util.h"
 
 namespace ui {
 
 NativeDisplayDelegateOzone::NativeDisplayDelegateOzone() {
 }
 
 NativeDisplayDelegateOzone::~NativeDisplayDelegateOzone() {
 }
 
 void NativeDisplayDelegateOzone::Initialize() {
-  DisplaySnapshot_Params params = CreateSnapshotFromCommandLine();
-  if (params.type != DISPLAY_CONNECTION_TYPE_NONE)
+  DisplaySnapshot_Params params;
+  if (CreateSnapshotFromCommandLine(&params)) {
+    DCHECK_NE(DISPLAY_CONNECTION_TYPE_NONE, params.type);
     displays_.push_back(new DisplaySnapshotProxy(params));
+  }
 }
 
 void NativeDisplayDelegateOzone::GrabServer() {
   NOTIMPLEMENTED();
 }
 
 void NativeDisplayDelegateOzone::UngrabServer() {
   NOTIMPLEMENTED();
 }
 
@@ skipping 70 matching lines @@
 void NativeDisplayDelegateOzone::AddObserver(NativeDisplayObserver* observer) {
   NOTIMPLEMENTED();
 }
 
 void NativeDisplayDelegateOzone::RemoveObserver(
     NativeDisplayObserver* observer) {
   NOTIMPLEMENTED();
 }
 
 }  // namespace ui