Revert 193486 "[Mac] Remove base::LaunchSynchronize and rewrite ..."

> [Mac] Remove base::LaunchSynchronize and rewrite content::MachBroker.
> 
> This restructures the way MachBroker parent-child communication happens. Now,
> the MachBroker lock will be held for the duration of LaunchProcess until the
> PID is returned and inserted into the MachMap. Since the lock must also be
> acquired on the broker thread to insert the received task port into the
> MachMap, this ensures that the placeholder is always inserted before the task
> port.
> 
> MachBroker has also been rewritten to use Mach IPC directly, rather than the C++
> wrappers in base/mach_ipc_mac.h. The wrappers are not flexible enough to allow
> the use of an audit trailer. This trailer is used to verify the PID of the
> sender of the check in message in the parent. Previously, this was done by
> another kernel trap, pid_for_task.
> 
> BUG=179923
> 
> 
> Review URL: https://chromiumcodereview.appspot.com/13845008

TBR=rsesek@chromium.org
Review URL: https://codereview.chromium.org/14120002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@193511 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 0 insertions, 7 deletions

diff --git a/base/mac/scoped_mach_port.cc b/base/mac/scoped_mach_port.cc
index 9e45a85..652e3f4 100644
--- a/base/mac/scoped_mach_port.cc
+++ b/base/mac/scoped_mach_port.cc
@@ -11,14 +11,9 @@ ScopedMachPort::ScopedMachPort(mach_port_t port) : port_(port) {
 }
 
 ScopedMachPort::~ScopedMachPort() {
-  reset();
-}
-
-void ScopedMachPort::reset(mach_port_t port) {
   if (port_ != MACH_PORT_NULL) {
     mach_port_deallocate(mach_task_self(), port_);
   }
-  port_ = port;
 }
 
 }  // namespace mac
diff --git a/base/mac/scoped_mach_port.h b/base/mac/scoped_mach_port.h
index cc2ef20..d2aa2f7 100644
--- a/base/mac/scoped_mach_port.h
+++ b/base/mac/scoped_mach_port.h
@@ -22,8 +22,6 @@ class BASE_EXPORT ScopedMachPort {
 
   ~ScopedMachPort();
 
-  void reset(mach_port_t port = MACH_PORT_NULL);
-
   operator mach_port_t() const {
     return port_;
   }