BrowserPlugin Cleanup: Simplify update device scale factor

content/renderer/browser_plugin/browser_plugin_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 "content/renderer/browser_plugin/browser_plugin_manager.h"
 
 #include "base/lazy_instance.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/threading/thread_local.h"
 #include "base/values.h"
@@ skipping 36 matching lines @@
 
 BrowserPlugin* BrowserPluginManager::GetBrowserPlugin(
     int browser_plugin_instance_id) const {
   return instances_.Lookup(browser_plugin_instance_id);
 }
 
 int BrowserPluginManager::GetNextInstanceID() {
   return ++current_instance_id_;
 }
 
-void BrowserPluginManager::UpdateDeviceScaleFactor(float device_scale_factor) {
+void BrowserPluginManager::UpdateDeviceScaleFactor() {
   IDMap<BrowserPlugin>::iterator iter(&instances_);
   while (!iter.IsAtEnd()) {
-    iter.GetCurrentValue()->UpdateDeviceScaleFactor(device_scale_factor);
+    iter.GetCurrentValue()->UpdateDeviceScaleFactor();
     iter.Advance();
   }
 }
 
 void BrowserPluginManager::UpdateFocusState() {
   IDMap<BrowserPlugin>::iterator iter(&instances_);
   while (!iter.IsAtEnd()) {
     iter.GetCurrentValue()->UpdateGuestFocusState();
     iter.Advance();
   }
 }
 
 void BrowserPluginManager::Attach(int browser_plugin_instance_id) {
   BrowserPlugin* plugin = GetBrowserPlugin(browser_plugin_instance_id);
   if (plugin)
     plugin->Attach();
 }
 
 }  // namespace content