content/ui[Android]: Remove ContextProviderFactory.

services/ui/public/cpp/gpu/gpu.cc

Index: services/ui/public/cpp/gpu/gpu.cc
diff --git a/services/ui/public/cpp/gpu/gpu.cc b/services/ui/public/cpp/gpu/gpu.cc
index 06238988ac9cfa9d4b02527955740b3cf5a3a21e..45ba2595fcd7a5c9a20961d317c748552c20f130 100644
--- a/services/ui/public/cpp/gpu/gpu.cc
+++ b/services/ui/public/cpp/gpu/gpu.cc
@@ -46,8 +46,6 @@ Gpu::Gpu(service_manager::Connector* connector,
 
 Gpu::~Gpu() {
   DCHECK(IsMainThread());
-  for (const auto& callback : establish_callbacks_)

[Khushal, 2017/02/13 21:07:13]

+fsamuel, do you want to take another look? Keeping this consistent with the
factory in content/.

-    callback.Run(nullptr);
   shutdown_event_.Signal();
   if (gpu_channel_)
     gpu_channel_->DestroyChannel();