Move code in //services/gles2 into namespace gles2

services/native_viewport/main.cc

Index: services/native_viewport/main.cc
diff --git a/services/native_viewport/main.cc b/services/native_viewport/main.cc
index f0030700e89df293e9322774beb4ea3d53bc28d5..d639077364ec29a0768c6fde096e425c23519540 100644
--- a/services/native_viewport/main.cc
+++ b/services/native_viewport/main.cc
@@ -60,12 +60,12 @@ class NativeViewportAppDelegate
   void Create(ApplicationConnection* connection,
               InterfaceRequest<Gpu> request) override {
     if (!gpu_state_.get())
-      gpu_state_ = new GpuImpl::State;
-    new GpuImpl(request.Pass(), gpu_state_);
+      gpu_state_ = new gles2::GpuImpl::State;
+    new gles2::GpuImpl(request.Pass(), gpu_state_);
   }
 
   ApplicationImpl* app_;
-  scoped_refptr<GpuImpl::State> gpu_state_;
+  scoped_refptr<gles2::GpuImpl::State> gpu_state_;
   bool is_headless_;
   DISALLOW_COPY_AND_ASSIGN(NativeViewportAppDelegate);
 };