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

chrome/common/origin_trials/chrome_origin_trial_policy.cc

Index: chrome/common/origin_trials/chrome_origin_trial_policy.cc
diff --git a/chrome/common/origin_trials/origin_trial_key_manager.cc b/chrome/common/origin_trials/chrome_origin_trial_policy.cc
similarity index 75%
rename from chrome/common/origin_trials/origin_trial_key_manager.cc
rename to chrome/common/origin_trials/chrome_origin_trial_policy.cc
index 12467d29e0300b0297cfa816715ff086e5894c25..0c67ab93efa258089c1080b699451b86a100b8c9 100644
--- a/chrome/common/origin_trials/origin_trial_key_manager.cc
+++ b/chrome/common/origin_trials/chrome_origin_trial_policy.cc
@@ -1,8 +1,8 @@
-// Copyright (c) 2016 The Chromium Authors. All rights reserved.
+// Copyright 2016 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/origin_trials/origin_trial_key_manager.h"
+#include "chrome/common/origin_trials/chrome_origin_trial_policy.h"
 
 #include <stdint.h>
 
@@ -17,13 +17,17 @@ static const uint8_t kDefaultPublicKey[] = {
     0x51, 0x14, 0x66, 0xaa, 0x02, 0x53, 0x4e, 0x33, 0xa1, 0x15,
 };
 
-OriginTrialKeyManager::OriginTrialKeyManager()
+ChromeOriginTrialPolicy::ChromeOriginTrialPolicy()
     : public_key_(std::string(reinterpret_cast<const char*>(kDefaultPublicKey),
                               arraysize(kDefaultPublicKey))) {}
 
-OriginTrialKeyManager::~OriginTrialKeyManager() {}
+ChromeOriginTrialPolicy::~ChromeOriginTrialPolicy() {}
 
-bool OriginTrialKeyManager::SetPublicKeyFromASCIIString(
+base::StringPiece ChromeOriginTrialPolicy::GetPublicKey() const {
+  return base::StringPiece(public_key_);
+}
+
+bool ChromeOriginTrialPolicy::SetPublicKeyFromASCIIString(
     const std::string& ascii_public_key) {
   // Base64-decode the incoming string. Set the key if it is correctly formatted
   std::string new_public_key;
@@ -34,7 +38,3 @@ bool OriginTrialKeyManager::SetPublicKeyFromASCIIString(
   public_key_.swap(new_public_key);
   return true;
 }
-
-base::StringPiece OriginTrialKeyManager::GetPublicKey() const {
-  return base::StringPiece(public_key_);
-}