Revert of Add more strict DCHECKs around context state.

gpu/command_buffer/service/gl_context_virtual.cc

Index: gpu/command_buffer/service/gl_context_virtual.cc
diff --git a/gpu/command_buffer/service/gl_context_virtual.cc b/gpu/command_buffer/service/gl_context_virtual.cc
index 51cc84fb2e969f57c75efa421067e7e032fba221..2582d00a754fc193d6cf1bb48e3c6aaad8217e73 100644
--- a/gpu/command_buffer/service/gl_context_virtual.cc
+++ b/gpu/command_buffer/service/gl_context_virtual.cc
@@ -51,12 +51,10 @@
   // If it's a real surface it needs to be current.
   if (surface &&
       !surface->IsOffscreen())
-    return shared_context_->IsCurrent(surface) &&
-           shared_context_->current_virtual_context_ == this;
+    return shared_context_->IsCurrent(surface);
 
   // Otherwise, only insure the context itself is current.
-  return shared_context_->IsCurrent(NULL) &&
-         shared_context_->current_virtual_context_ == this;
+  return shared_context_->IsCurrent(NULL);
 }
 
 void* GLContextVirtual::GetHandle() {