Remove a bunch of unused network flags.

chrome/browser/chrome_browser_main.cc

Index: chrome/browser/chrome_browser_main.cc
diff --git a/chrome/browser/chrome_browser_main.cc b/chrome/browser/chrome_browser_main.cc
index 9d0d9dabddc1bbb7630714fc4ef4848fdfc89dae..9c975e31271993068ffdb00ac6095962fa7a8d3a 100644
--- a/chrome/browser/chrome_browser_main.cc
+++ b/chrome/browser/chrome_browser_main.cc
@@ -1391,20 +1391,8 @@ int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
   browser_process_->intranet_redirect_detector();
   GoogleSearchCounter::RegisterForNotifications();
 
-  if (parsed_command_line().HasSwitch(switches::kEnableSdch)) {
-    // SDCH options via switches::kEnableSdch include:
-    const int kSdchDisabled = 0;
-    const int kSdchOverHttpEnabled = 1;
-    const int kSdchOverBothHttpAndHttpsEnabled = 2;
-    int sdch_enabled = kSdchOverHttpEnabled;
-    if (base::StringToInt(parsed_command_line().GetSwitchValueASCII(
-            switches::kEnableSdch), &sdch_enabled)) {
-      if (sdch_enabled == kSdchDisabled) {
-        net::SdchManager::EnableSdchSupport(false);

[mef, 2014/02/24 21:41:37]

Is it OK that if we remove this option, then there is no way to disable SDCH
support?

[willchan no longer on Chromium, 2014/02/24 21:45:57]

I assert yes, according to the policies laid out in the chromium-dev thread.

-      } else if (sdch_enabled == kSdchOverBothHttpAndHttpsEnabled) {
-        net::SdchManager::EnableSecureSchemeSupport(true);
-      }
-    }
+  if (parsed_command_line().HasSwitch(switches::kEnableSdchOverHttps)) {

[mef, 2014/02/24 21:41:37]

Would it make sense to replace command line switch with finch trial? AFIUI it is
possible to explicitly enable/disable finch trials locally.

[willchan no longer on Chromium, 2014/02/24 21:45:57]

I dunno. It's up to you :)

+    net::SdchManager::EnableSecureSchemeSupport(true);
   }
 
   if (parsed_command_line().HasSwitch(switches::kEnableWatchdog))