Revert 133472 - Use bundled Pepper Flash on Windows (Canary, still on a field trial).

chrome/common/pepper_flash.cc

Index: chrome/common/pepper_flash.cc
===================================================================
--- chrome/common/pepper_flash.cc	(revision 133481)
+++ chrome/common/pepper_flash.cc	(working copy)
@@ -1,94 +0,0 @@
-// 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/pepper_flash.h"
-
-#include "base/basictypes.h"
-#include "base/command_line.h"
-#include "base/memory/ref_counted.h"
-#include "base/metrics/field_trial.h"
-#include "base/string16.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/installer/util/browser_distribution.h"
-
-#if defined(OS_WIN)
-#include "base/win/metro.h"
-#endif
-
-namespace {
-
-const char* const kFieldTrialName = "PepperFlash";
-const char* const kDisableGroupName = "DisableByDefault";
-const char* const kEnableGroupName = "EnableByDefault";
-int g_disabled_group_number = -1;
-
-void ActivateFieldTrial() {
-  // The field trial will expire on Jan 1st, 2014.
-  scoped_refptr<base::FieldTrial> trial(
-      base::FieldTrialList::FactoryGetFieldTrial(
-          kFieldTrialName, 1000, kDisableGroupName, 2014, 1, 1,
-          &g_disabled_group_number));
-
-  CommandLine* command_line = CommandLine::ForCurrentProcess();
-  if (command_line->HasSwitch(switches::kPpapiFlashFieldTrial)) {
-    std::string switch_value =
-        command_line->GetSwitchValueASCII(switches::kPpapiFlashFieldTrial);
-    if (switch_value == switches::kPpapiFlashFieldTrialEnableByDefault) {
-      trial->AppendGroup(kEnableGroupName, 1000);
-      return;
-    } else if (switch_value ==
-        switches::kPpapiFlashFieldTrialDisableByDefault) {
-      return;
-    }
-  }
-
-  // Disable by default if one time randomization is not available.
-  if (!base::FieldTrialList::IsOneTimeRandomizationEnabled())
-    return;
-
-  trial->UseOneTimeRandomization();
-  // 50% goes into the enable-by-default group.
-  trial->AppendGroup(kEnableGroupName, 500);
-}
-
-bool IsInFieldTrialGroup() {
-  static bool activated = false;
-  if (!activated) {
-    ActivateFieldTrial();
-    activated = true;
-  }
-
-  int group = base::FieldTrialList::FindValue(kFieldTrialName);
-  return group != base::FieldTrial::kNotFinalized &&
-         group != g_disabled_group_number;
-}
-
-}  // namespace
-
-bool IsPepperFlashEnabledByDefault() {
-#if defined(USE_AURA)
-  // Pepper Flash is required for Aura (on any OS).
-  return true;
-#elif defined(OS_WIN)
-  // Pepper Flash is required for Windows 8 Metro mode.
-  if (base::win::GetMetroModule())
-    return true;
-
-  // For other Windows users, enable only for Canary users in a field trial.
-  if (!IsInFieldTrialGroup())
-    return false;
-  BrowserDistribution* dist = BrowserDistribution::GetDistribution();
-  if (!dist)
-    return false;
-  string16 channel;
-  if (!dist->GetChromeChannel(&channel))
-    return false;
-  return (channel == L"canary");
-#elif defined(OS_LINUX)
-  // For Linux, always try to use it (availability is checked elsewhere).
-  return true;
-#else
-  return false;
-#endif
-}