Add V4L2 device permissions on x86 CrOS which has ozone flag

content/common/sandbox_linux/bpf_cros_arm_gpu_policy_linux.cc

 // Copyright (c) 2013 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.

[wuchengli, 2015/01/05 08:42:44]

This CL doesn't add the permission for all x86. Please update the title and says
this only works for ozone.

 
 #include "content/common/sandbox_linux/bpf_cros_arm_gpu_policy_linux.h"
 
 #include <dlfcn.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
@@ skipping 38 matching lines @@
   return true;
 #else
   return false;
 #endif
 }
 
 void AddArmMaliGpuWhitelist(std::vector<BrokerFilePermission>* permissions) {
   // Device file needed by the ARM GPU userspace.
   static const char kMali0Path[] = "/dev/mali0";
 
-  // Device nodes for V4L2 video decode accelerator drivers.
-  static const char kDevVideoDecPath[] = "/dev/video-dec";
-
   // Video processor used on ARM Exynos platforms.
   static const char kDevGsc1Path[] = "/dev/gsc1";
 
-  // Device nodes for V4L2 video encode accelerator drivers.
-  static const char kDevVideoEncPath[] = "/dev/video-enc";
-
   permissions->push_back(BrokerFilePermission::ReadWrite(kMali0Path));
-  permissions->push_back(BrokerFilePermission::ReadWrite(kDevVideoDecPath));
   permissions->push_back(BrokerFilePermission::ReadWrite(kDevGsc1Path));
-  permissions->push_back(BrokerFilePermission::ReadWrite(kDevVideoEncPath));
 }
 
 void AddArmGpuWhitelist(std::vector<BrokerFilePermission>* permissions) {
   // On ARM we're enabling the sandbox before the X connection is made,
   // so we need to allow access to |.Xauthority|.
   static const char kXAuthorityPath[] = "/home/chronos/.Xauthority";
   static const char kLdSoCache[] = "/etc/ld.so.cache";
 
   // Files needed by the ARM GPU userspace.
   static const char kLibGlesPath[] = "/usr/lib/libGLESv2.so.2";
@@ skipping 91 matching lines @@
   // Preload the Tegra V4L2 (video decode acceleration) library.
   dlopen("/usr/lib/libtegrav4l2.so", dlopen_flag);
   // Resetting errno since platform-specific libraries will fail on other
   // platforms.
   errno = 0;
 
   return true;
 }
 
 }  // namespace content