Replace IOSurfaceManager by directly passing IOSurface Mach ports over Chrome IPC.

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index 9197d0cb264e99f6ea28f71a90f9fada6df650d8..a77a9f1a0e989b5f889eece1c40fc7ae3798cb2b 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -195,7 +195,6 @@
 
 #if defined(OS_MACOSX) && !defined(OS_IOS)
 #include "content/browser/bootstrap_sandbox_manager_mac.h"
-#include "content/browser/browser_io_surface_manager_mac.h"
 #include "content/browser/mach_broker_mac.h"
 #endif
 
@@ -1882,14 +1881,6 @@ void RenderProcessHostImpl::Cleanup() {
     // Remove ourself from the list of renderer processes so that we can't be
     // reused in between now and when the Delete task runs.
     UnregisterHost(GetID());
-
-#if defined(OS_MACOSX) && !defined(OS_IOS)
-    if (!io_surface_manager_token_.IsZero()) {
-      BrowserIOSurfaceManager::GetInstance()->InvalidateChildProcessToken(
-          io_surface_manager_token_);
-      io_surface_manager_token_.SetZero();
-    }
-#endif
   }
 }
 
@@ -2474,13 +2465,6 @@ void RenderProcessHostImpl::OnProcessLaunched() {
     UpdateProcessPriority();
   }
 
-#if defined(OS_MACOSX) && !defined(OS_IOS)
-  io_surface_manager_token_ =
-      BrowserIOSurfaceManager::GetInstance()->GenerateChildProcessToken(
-          GetID());
-  Send(new ChildProcessMsg_SetIOSurfaceManagerToken(io_surface_manager_token_));
-#endif
-
   // NOTE: This needs to be before sending queued messages because
   // ExtensionService uses this notification to initialize the renderer process
   // with state that must be there before any JavaScript executes.