Remove sandbox on Windows.

content/ppapi_plugin/ppapi_thread.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 "content/ppapi_plugin/ppapi_thread.h"
 
 #include <stddef.h>
 
 #include <limits>
 
@@ skipping 38 matching lines @@
 #include "ppapi/proxy/plugin_message_filter.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/proxy/resource_reply_thread_registrar.h"
 #include "third_party/WebKit/public/web/WebKit.h"
 #include "ui/base/ui_base_switches.h"
 
 #if defined(OS_WIN)
 #include "base/win/win_util.h"
 #include "base/win/windows_version.h"
 #include "content/child/font_warmup_win.h"
-#include "sandbox/win/src/sandbox.h"
 #elif defined(OS_MACOSX)
 #include "content/common/sandbox_init_mac.h"
 #endif
 
 #if defined(OS_WIN)
 const char kWidevineCdmAdapterFileName[] = "widevinecdmadapter.dll";
 
-extern sandbox::TargetServices* g_target_services;
-
 // Used by EnumSystemLocales for warming up.
 static BOOL CALLBACK EnumLocalesProc(LPTSTR lpLocaleString) {
   return TRUE;
 }
 
 static BOOL CALLBACK EnumLocalesProcEx(
     LPWSTR lpLocaleString,
     DWORD dwFlags,
     LPARAM lParam) {
   return TRUE;
@@ skipping 273 matching lines @@
         ReportLoadResult(path, ENTRY_POINT_MISSING);
         return;
       }
     }
   }
 
 #if defined(OS_WIN)
   // If code subsequently tries to exit using abort(), force a crash (since
   // otherwise these would be silent terminations and fly under the radar).
   base::win::SetAbortBehaviorForCrashReporting();
-
-  // Once we lower the token the sandbox is locked down and no new modules
-  // can be loaded. TODO(cpu): consider changing to the loading style of
-  // regular plugins.
-  if (g_target_services) {
-    // Let Flash and Widevine CDM adapter load DXVA before lockdown on Vista+.
-    if (permissions.HasPermission(ppapi::PERMISSION_FLASH) ||
-        path.BaseName().MaybeAsASCII() == kWidevineCdmAdapterFileName) {
-      if (base::win::OSInfo::GetInstance()->version() >=
-          base::win::VERSION_VISTA) {
-        LoadLibraryA("dxva2.dll");
-      }
-    }
-
-    if (permissions.HasPermission(ppapi::PERMISSION_FLASH)) {
-      if (base::win::OSInfo::GetInstance()->version() >=
-          base::win::VERSION_WIN7) {
-        base::CPU cpu;
-        if (cpu.vendor_name() == "AuthenticAMD") {
-          // The AMD crypto acceleration is only AMD Bulldozer and above.
-#if defined(_WIN64)
-          LoadLibraryA("amdhcp64.dll");
-#else
-          LoadLibraryA("amdhcp32.dll");
-#endif
-        }
-      }
-    }
-
-    // Cause advapi32 to load before the sandbox is turned on.
-    unsigned int dummy_rand;
-    rand_s(&dummy_rand);
-
-    WarmupWindowsLocales(permissions);
-
-    if (!base::win::IsUser32AndGdi32Available() &&
-        permissions.HasPermission(ppapi::PERMISSION_FLASH)) {
-      PatchGdiFontEnumeration(path);
-    }
-
-    g_target_services->LowerToken();
-  }
 #endif
 
   if (is_broker_) {
     // Get the InitializeBroker function (required).
     InitializeBrokerFunc init_broker =
         reinterpret_cast<InitializeBrokerFunc>(
             library.GetFunctionPointer("PPP_InitializeBroker"));
     if (!init_broker) {
       LOG(WARNING) << "No PPP_InitializeBroker in plugin library";
       ReportLoadResult(path, ENTRY_POINT_MISSING);
@@ skipping 189 matching lines @@
           GetHistogramName(is_broker_, "LoadTime", path),
           base::TimeDelta::FromMilliseconds(1),
           base::TimeDelta::FromSeconds(10),
           50,
           base::HistogramBase::kUmaTargetedHistogramFlag);
 
   histogram->AddTime(load_time);
 }
 
 }  // namespace content