content/gpu: Simplify stub scheduling.

content/common/gpu/gpu_channel.cc

Index: content/common/gpu/gpu_channel.cc
diff --git a/content/common/gpu/gpu_channel.cc b/content/common/gpu/gpu_channel.cc
index 43459999408a13e2fd875e9a61ff19837a7aa1a3..9379482ec60a31d0aabb2783839c2ee33fdf31e9 100644
--- a/content/common/gpu/gpu_channel.cc
+++ b/content/common/gpu/gpu_channel.cc
@@ -686,7 +686,8 @@ void GpuChannel::OnRemoveSubscription(unsigned int target) {
       new GpuHostMsg_RemoveSubscription(client_id_, target));
 }
 
-void GpuChannel::StubSchedulingChanged(bool scheduled) {
+void GpuChannel::OnStubSchedulingChanged(GpuCommandBufferStub* stub,
+                                         bool scheduled) {
   bool a_stub_was_descheduled = num_stubs_descheduled_ > 0;
   if (scheduled) {
     num_stubs_descheduled_--;
@@ -1011,7 +1012,7 @@ void GpuChannel::OnDestroyCommandBuffer(int32 route_id) {
   // stub, we need to make sure to reschedule the GpuChannel here.
   if (!stub->IsScheduled()) {
     // This stub won't get a chance to reschedule, so update the count now.
-    StubSchedulingChanged(true);
+    OnStubSchedulingChanged(stub.get(), true);
   }
 }