Add detached mode plumbing

content/gpu/gpu_child_thread.cc

Index: content/gpu/gpu_child_thread.cc
diff --git a/content/gpu/gpu_child_thread.cc b/content/gpu/gpu_child_thread.cc
index 6eee7220acd55d4fc2c1bbc1916e39f4a11e0a58..5af504b942fa0b984fd720c78d9626d9b6095eb3 100644
--- a/content/gpu/gpu_child_thread.cc
+++ b/content/gpu/gpu_child_thread.cc
@@ -332,6 +332,8 @@ void GpuChildThread::SendAcceleratedSurfaceBuffersSwapped(
     int32_t surface_id,
     CAContextID ca_context_id,
     const gfx::ScopedRefCountedIOSurfaceMachPort& io_surface,
+    bool use_detached,
+    CAContextID detached_ca_context_id,
     const gfx::Size& size,
     float scale_factor,
     std::vector<ui::LatencyInfo> latency_info) {
@@ -339,6 +341,8 @@ void GpuChildThread::SendAcceleratedSurfaceBuffersSwapped(
   params.surface_id = surface_id;
   params.ca_context_id = ca_context_id;
   params.io_surface = io_surface;
+  params.use_detached = use_detached;
+  params.detached_ca_context_id = detached_ca_context_id;
   params.size = size;
   params.scale_factor = scale_factor;
   params.latency_info = std::move(latency_info);