Mac: Fix the "no autorelease pool in place" error by initializing an NSAutoreleasePool on every thread (issue #502).

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@482 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/cef_thread.cc

@@ -9,6 +9,10 @@
 #include "base/message_loop.h"
 #include "base/message_loop_proxy.h"
 
+#if defined(OS_WIN)
+#include <Objbase.h>  // NOLINT(build/include_order)
+#endif
+
 using base::MessageLoopProxy;
 
 // Friendly names for the well-known threads.
@@ -102,6 +106,29 @@ CefThread::CefThread(ID identifier, MessageLoop* message_loop)
   Initialize();
 }
 
+void CefThread::Init() {
+#if defined(OS_WIN)
+  // Initializes the COM library on the current thread.
+  CoInitialize(NULL);
+#endif
+
+#if defined(OS_MACOSX)
+  autorelease_pool_.reset(new base::mac::ScopedNSAutoreleasePool);
+#endif
+}
+
+void CefThread::Cleanup() {
+#if defined(OS_WIN)
+  // Closes the COM library on the current thread. CoInitialize must
+  // be balanced by a corresponding call to CoUninitialize.
+  CoUninitialize();
+#endif
+
+#if defined(OS_MACOSX)
+  autorelease_pool_.reset(NULL);
+#endif
+}
+
 void CefThread::Initialize() {
   base::AutoLock lock(lock_);
   DCHECK(identifier_ >= 0 && identifier_ < ID_COUNT);