Remove --default-device-scale-factor

ui/aura/monitor_manager.cc

 // Copyright (c) 2012 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/aura/monitor_manager.h"
 
 #include <stdio.h>
 
 #include "base/logging.h"
 #include "ui/aura/display_observer.h"
@@ skipping 14 matching lines @@
 
 // static
 bool MonitorManager::use_fullscreen_host_window_ = false;
 
 // static
 gfx::Display MonitorManager::CreateMonitorFromSpec(const std::string& spec) {
   static int synthesized_monitor_id = 1000;
   gfx::Rect bounds(kDefaultHostWindowX, kDefaultHostWindowY,
                    kDefaultHostWindowWidth, kDefaultHostWindowHeight);
   int x = 0, y = 0, width, height;
-  float scale = gfx::Display::GetDefaultDeviceScaleFactor();
+  float scale = 1.0f;
   if (sscanf(spec.c_str(), "%dx%d*%f", &width, &height, &scale) >= 2) {
     bounds.set_size(gfx::Size(width, height));
   } else if (sscanf(spec.c_str(), "%d+%d-%dx%d*%f", &x, &y, &width, &height,
                     &scale) >= 4 ) {
     bounds = gfx::Rect(x, y, width, height);
   } else if (use_fullscreen_host_window_) {
     bounds = gfx::Rect(aura::RootWindowHost::GetNativeScreenSize());
   }
   gfx::Display display(synthesized_monitor_id++);
   display.SetScaleAndBounds(scale, bounds);
@@ skipping 32 matching lines @@
 
 void MonitorManager::NotifyDisplayAdded(const gfx::Display& display) {
   FOR_EACH_OBSERVER(DisplayObserver, observers_, OnDisplayAdded(display));
 }
 
 void MonitorManager::NotifyDisplayRemoved(const gfx::Display& display) {
   FOR_EACH_OBSERVER(DisplayObserver, observers_, OnDisplayRemoved(display));
 }
 
 }  // namespace aura