Store Origin Trials public key in browser prefs

chrome/browser/chrome_browser_main.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 "chrome/browser/chrome_browser_main.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <set>
@@ skipping 793 matching lines @@
   // doesn't know if this is the first run. This will cause some inaccuracy in
   // the UMA statistics, but this should be minor (first runs are rare).
   is_first_run = first_run::IsChromeFirstRun();
 #endif  // defined(OS_ANDROID)
 
   // Record collected startup metrics.
   startup_metric_utils::RecordBrowserMainMessageLoopStart(
       base::TimeTicks::Now(), is_first_run, g_browser_process->local_state());
 }
 
+void ChromeBrowserMainParts::SetupOriginTrials() {
+  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
+  if (!command_line->HasSwitch(switches::kOriginTrialPublicKey)) {
+    command_line->AppendSwitchASCII(
+        switches::kOriginTrialPublicKey,
+        local_state_->GetString(prefs::kOriginTrialPublicKey));
+  }
+}
+
 // -----------------------------------------------------------------------------
 // TODO(viettrungluu): move more/rest of BrowserMain() into BrowserMainParts.
 
 #if defined(OS_WIN)
 #define DLLEXPORT __declspec(dllexport)
 
 // We use extern C for the prototype DLLEXPORT to avoid C++ name mangling.
 extern "C" {
 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 }
@@ skipping 313 matching lines @@
   // any callbacks, I just want to initialize the mechanism.)
   SecKeychainAddCallback(&KeychainCallback, 0, NULL);
 #endif  // defined(OS_MACOSX)
 
 #if defined(OS_CHROMEOS)
   // Must be done after g_browser_process is constructed, before
   // SetupMetricsAndFieldTrials().
   chromeos::CrosSettings::Initialize();
 #endif  // defined(OS_CHROMEOS)
 
+  SetupOriginTrials();
+
   // Now the command line has been mutated based on about:flags, we can setup
   // metrics and initialize field trials. The field trials are needed by
   // IOThread's initialization which happens in BrowserProcess:PreCreateThreads.
   SetupMetricsAndFieldTrials();
 
   // ChromeOS needs ResourceBundle::InitSharedInstance to be called before this.
   browser_process_->PreCreateThreads();
 
   return content::RESULT_CODE_NORMAL_EXIT;
 }
@@ skipping 836 matching lines @@
   chromeos::CrosSettings::Shutdown();
 #endif  // defined(OS_CHROMEOS)
 #endif  // defined(OS_ANDROID)
 }
 
 // Public members:
 
 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
   chrome_extra_parts_.push_back(parts);
 }