Update from https://crrev.com/308996

base/base_switches.cc

Index: base/base_switches.cc
diff --git a/base/base_switches.cc b/base/base_switches.cc
index 27f52cdb33025888a1db6735f42589542885b32e..30765405de1802cf21d8943a0348fa3b1dd79a95 100644
--- a/base/base_switches.cc
+++ b/base/base_switches.cc
@@ -17,10 +17,11 @@ const char kEnableCrashReporter[]           = "enable-crash-reporter";
 // Generates full memory crash dump.
 const char kFullMemoryCrashReport[]         = "full-memory-crash-report";
 
-// Force low-end device when set to 1;
-// Auto-detect low-end device when set to 2;
-// Force non-low-end device when set to other values or empty;
-const char kLowEndDeviceMode[]              = "low-end-device-mode";
+// Force low-end device mode when set.
+const char kEnableLowEndDeviceMode[]        = "enable-low-end-device-mode";
+
+// Force disabling of low-end device mode when set.
+const char kDisableLowEndDeviceMode[]       = "disable-low-end-device-mode";
 
 // Suppresses all error dialogs when present.
 const char kNoErrorDialogs[]                = "noerrdialogs";