Update from https://crrev.com/315085

base/process/process_posix.cc

Index: base/process/process_posix.cc
diff --git a/base/process/process_posix.cc b/base/process/process_posix.cc
index 5d7007c9c9e0bc29475799d159b8a0c2f1f073de..bc2f3f8bfa628febe97f73a21120525306b6d515 100644
--- a/base/process/process_posix.cc
+++ b/base/process/process_posix.cc
@@ -14,7 +14,6 @@
 namespace base {
 
 Process::Process(ProcessHandle handle) : process_(handle) {
-  CHECK_NE(handle, GetCurrentProcessHandle());
 }
 
 Process::Process(RValue other)
@@ -32,22 +31,25 @@ Process& Process::operator=(RValue other) {
 
 // static
 Process Process::Current() {
-  Process process;
-  process.process_ = GetCurrentProcessHandle();
-  return process.Pass();
+  return Process(GetCurrentProcessHandle());
 }
 
 // static
-Process Process::OpenWithExtraPriviles(ProcessId pid) {
+Process Process::Open(ProcessId pid) {
   if (pid == GetCurrentProcId())
     return Current();
 
-  // On POSIX process handles are the same as PIDs, and there are no privileges
-  // to set.
+  // On POSIX process handles are the same as PIDs.
   return Process(pid);
 }
 
 // static
+Process Process::OpenWithExtraPriviles(ProcessId pid) {
+  // On POSIX there are no privileges to set.
+  return Open(pid);
+}
+
+// static
 Process Process::DeprecatedGetProcessFromHandle(ProcessHandle handle) {
   DCHECK_NE(handle, GetCurrentProcessHandle());
   return Process(handle);