Add chrome-side code for autoreload experiment.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index 293df39624fa2c7b9a48d7edbe74be8207f62b31..c0dc0fe24d214a3f986ba8d52d361f43d9b2a69e 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -1548,6 +1548,17 @@ void ChromeContentBrowserClient::AppendExtraCommandLineSwitches(
 #endif
     }
 
+    {
+      // Enable auto-reload if this session is in the field trial or the user
+      // explicitly enabled it.
+      std::string group =
+          base::FieldTrialList::FindFullName("AutoReloadExperiment");
+      if (group == "Enabled" ||
+          browser_command_line.HasSwitch(switches::kEnableOfflineAutoReload)) {
+        command_line->AppendSwitch(switches::kEnableOfflineAutoReload);
+      }
+    }
+
     // Please keep this in alphabetical order.
     static const char* const kSwitchNames[] = {
       autofill::switches::kDisableIgnoreAutocompleteOff,
@@ -1577,7 +1588,6 @@ void ChromeContentBrowserClient::AppendExtraCommandLineSwitches(
       switches::kEnableNaClDebug,
       switches::kEnableNaClNonSfiMode,
       switches::kEnableNetBenchmarking,
-      switches::kEnableOfflineAutoReload,
       switches::kEnableStreamlinedHostedApps,
       switches::kEnableWatchdog,
       switches::kMemoryProfiling,