content: Pass IOSurface references using Mach IPC.

content/browser/browser_main_loop.cc

Index: content/browser/browser_main_loop.cc
diff --git a/content/browser/browser_main_loop.cc b/content/browser/browser_main_loop.cc
index 50d0d8260023e27e578585f37344b5151a9b4a86..340babf8207f4352fbc26a210dfa569e4dac8a95 100644
--- a/content/browser/browser_main_loop.cc
+++ b/content/browser/browser_main_loop.cc
@@ -93,6 +93,7 @@
 #if defined(OS_MACOSX) && !defined(OS_IOS)
 #include "base/memory/memory_pressure_monitor_mac.h"
 #include "content/browser/bootstrap_sandbox_mac.h"
+#include "content/browser/browser_io_surface_manager_mac.h"
 #include "content/browser/cocoa/system_hotkey_helper_mac.h"
 #include "content/browser/compositor/browser_compositor_view_mac.h"
 #include "content/browser/theme_helper_mac.h"
@@ -586,6 +587,13 @@ void BrowserMainLoop::MainMessageLoopStart() {
   }
 #endif
 
+#if defined(OS_MACOSX) && !defined(OS_IOS)
+  {
+    TRACE_EVENT0("startup", "BrowserMainLoop::Subsystem:IOSurfaceManager");
+    IOSurfaceManager::SetInstance(BrowserIOSurfaceManager::GetInstance());
+  }
+#endif
+
   if (parsed_command_line_.HasSwitch(switches::kMemoryMetrics)) {
     TRACE_EVENT0("startup", "BrowserMainLoop::Subsystem:MemoryObserver");
     memory_observer_.reset(new MemoryObserver());