[linux] Allow font to use below 1.0f scale

chrome/common/chrome_switches.h

 // 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.
 
 // Defines the shared command-line switches used by code in the Chrome
 // directory that don't have anywhere more specific to go.
 
 #ifndef CHROME_COMMON_CHROME_SWITCHES_H_
 #define CHROME_COMMON_CHROME_SWITCHES_H_
 
@@ skipping 373 matching lines @@
 
 #if defined(ENABLE_WAYLAND_SERVER)
 extern const char kEnableWaylandServer[];
 #endif
 
 #if defined(OS_WIN) || defined(OS_LINUX)
 extern const char kDisableInputImeAPI[];
 extern const char kEnableInputImeAPI[];
 #endif
 
+#if defined(OS_LINUX)
+extern const char kEnableXDPIForDSF[];

[Evan Stade, 2016/10/25 15:21:14]

nit: kEnableXDpiForDsf

[oshima, 2016/10/25 16:36:12]

Done.

+#endif
+
 bool AboutInSettingsEnabled();
 bool ExtensionsDisabled(const base::CommandLine& command_line);
 bool MdFeedbackEnabled();
 bool MdPolicyPageEnabled();
 bool PdfMaterialUIEnabled();
 bool SettingsWindowEnabled();
 
 #if defined(OS_CHROMEOS)
 bool PowerOverlayEnabled();
 #endif
 
 // DON'T ADD RANDOM STUFF HERE. Put it in the main section above in
 // alphabetical order, or in one of the ifdefs (also in order in each section).
 
 }  // namespace switches
 
 #endif  // CHROME_COMMON_CHROME_SWITCHES_H_