Initial CL for Data Saver (Flywheel) prompt when cellular network detected

chromeos/chromeos_switches.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 "chromeos/chromeos_switches.h"
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 
 // TODO(rsorokin): alphabetize all of these switches so they
@@ skipping 327 matching lines @@
 
 // Enable Chrome OS firewall hole-punching for Chrome Apps.
 const char kEnableFirewallHolePunching[] = "enable-firewall-hole-punching";
 
 // Enables searching for an app that supports a plugged in USB printer. When a
 // user plugs in USB printer, they are shown a notification offering to search
 // Chroem Web Store for an app that has printerProvider permission and can
 // handle the plugged in printer.
 const char kEnablePrinterAppSearch[] = "enable-printer-app-search";
 
+// Switches and optional value for Data Saver prompt on cellular networks.
+const char kDisableDataSaverPrompt[] = "disable-datasaver-prompt";
+const char kEnableDataSaverPrompt[] = "enable-datasaver-prompt";
+const char kDataSaverPromptDemoMode[] = "demo";
+
 bool WakeOnWifiEnabled() {
   return !base::CommandLine::ForCurrentProcess()->HasSwitch(kDisableWakeOnWifi);
 }
 
 bool MemoryPressureHandlingEnabled() {
   if ((base::CommandLine::ForCurrentProcess()->HasSwitch(
           chromeos::switches::kDisableMemoryPressureSystemChromeOS)) ||
       (base::FieldTrialList::FindFullName(kMemoryPressureExperimentName) ==
        kMemoryPressureHandlingOff))
     return false;
@@ skipping 31 matching lines @@
     return base::MemoryPressureObserverChromeOS::
         THRESHOLD_AGGRESSIVE_TAB_DISCARD;
   if (option == kAggressiveThreshold)
     return base::MemoryPressureObserverChromeOS::THRESHOLD_AGGRESSIVE;
 
   return base::MemoryPressureObserverChromeOS::THRESHOLD_DEFAULT;
 }
 
 }  // namespace switches
 }  // namespace chromeos