Remove "device scale factor" option from about flags page.

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index a1d3a56a8e87c6d6eb82b2bb92ccaec66f6be38c..b6c9a8684f01e516946aee8d6781f82923de4c00 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -178,17 +178,6 @@ const Experiment::Choice kOverscrollHistoryNavigationChoices[] = {
     "2" }
 };
 #endif
-#if defined(OS_CHROMEOS) || defined(OS_WIN) || defined(OS_LINUX)
-const Experiment::Choice kDeviceScaleFactorChoices[] = {
-  { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", ""},
-  { IDS_DEVICE_SCALE_FACTOR_1_1, switches::kForceDeviceScaleFactor, "1.1"},
-  { IDS_DEVICE_SCALE_FACTOR_1_2, switches::kForceDeviceScaleFactor, "1.2"},
-  { IDS_DEVICE_SCALE_FACTOR_1_25, switches::kForceDeviceScaleFactor, "1.25"},
-  { IDS_DEVICE_SCALE_FACTOR_1_3, switches::kForceDeviceScaleFactor, "1.3"},
-  { IDS_DEVICE_SCALE_FACTOR_1_4, switches::kForceDeviceScaleFactor, "1.4"},
-  { IDS_DEVICE_SCALE_FACTOR_2, switches::kForceDeviceScaleFactor, "2"},
-};
-#endif
 
 #if !defined(DISABLE_NACL)
 const Experiment::Choice kNaClDebugMaskChoices[] = {
@@ -921,15 +910,6 @@ const Experiment kExperiments[] = {
     SINGLE_VALUE_TYPE_AND_VALUE(switches::kAllowNaClSocketAPI, "*")
   },
 #endif
-#if defined(OS_CHROMEOS) || defined(OS_WIN) || defined(OS_LINUX)
-  {
-    "force-device-scale-factor",
-    IDS_FLAGS_FORCE_DEVICE_SCALE_FACTOR_NAME,
-    IDS_FLAGS_FORCE_DEVICE_SCALE_FACTOR_DESCRIPTION,
-    kOsLinux | kOsWin | kOsCrOS,
-    MULTI_VALUE_TYPE(kDeviceScaleFactorChoices)
-  },
-#endif
 #if defined(OS_CHROMEOS)
   {
     "allow-touchpad-three-finger-click",