Refactor OriginTrialPolicy to be an abstract interface in content/public/common

chrome/common/chrome_content_client.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/common/chrome_content_client.h"
 
 #include <stdint.h>
 
 #include <memory>
 #include <tuple>
@@ skipping 412 matching lines @@
   }
 
   std::string product = GetProduct();
 #if defined(OS_ANDROID)
   if (command_line->HasSwitch(switches::kUseMobileUserAgent))
     product += " Mobile";
 #endif
   return content::BuildUserAgentFromProduct(product);
 }
 
+ChromeContentClient::ChromeContentClient() {
+}
+
+ChromeContentClient::~ChromeContentClient() {
+}
+
 #if !defined(DISABLE_NACL)
 void ChromeContentClient::SetNaClEntryFunctions(
     content::PepperPluginInfo::GetInterfaceFunc get_interface,
     content::PepperPluginInfo::PPP_InitializeModuleFunc initialize_module,
     content::PepperPluginInfo::PPP_ShutdownModuleFunc shutdown_module) {
   g_nacl_get_interface = get_interface;
   g_nacl_initialize_module = initialize_module;
   g_nacl_shutdown_module = shutdown_module;
 }
 #endif
@@ skipping 250 matching lines @@
 }
 
 bool ChromeContentClient::IsSupplementarySiteIsolationModeEnabled() {
 #if defined(ENABLE_EXTENSIONS)
   return extensions::IsIsolateExtensionsEnabled();
 #else
   return false;
 #endif
 }
 
-base::StringPiece ChromeContentClient::GetOriginTrialPublicKey() {
-  return origin_trial_key_manager_.GetPublicKey();
+content::OriginTrialPolicy* ChromeContentClient::GetOriginTrialPolicy() {
+  if (!origin_trial_policy_) {
+    origin_trial_policy_ = base::WrapUnique(new ChromeOriginTrialPolicy());
+  }
+  return origin_trial_policy_.get();
 }
 
 #if defined(OS_ANDROID)
 media::MediaClientAndroid* ChromeContentClient::GetMediaClientAndroid() {
   return new ChromeMediaClientAndroid();
 }
 #endif  // OS_ANDROID