Revert of Add more strict DCHECKs around context state.

gpu/command_buffer/service/gl_context_virtual.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "gpu/command_buffer/service/gl_context_virtual.h"
 
 #include "base/callback.h"
 #include "gpu/command_buffer/service/gl_state_restorer_impl.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 #include "ui/gl/gl_gl_api_implementation.h"
@@ skipping 33 matching lines @@
   if (IsCurrent(surface)) {
     shared_context_->OnReleaseVirtuallyCurrent(this);
     shared_context_->ReleaseCurrent(surface);
   }
 }
 
 bool GLContextVirtual::IsCurrent(gl::GLSurface* surface) {
   // 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() {
   return shared_context_->GetHandle();
 }
 
 scoped_refptr<gl::GPUTimingClient> GLContextVirtual::CreateGPUTimingClient() {
   return shared_context_->CreateGPUTimingClient();
 }
 
@@ skipping 30 matching lines @@
 
 gl::YUVToRGBConverter* GLContextVirtual::GetYUVToRGBConverter() {
   return shared_context_->GetYUVToRGBConverter();
 }
 
 GLContextVirtual::~GLContextVirtual() {
   Destroy();
 }
 
 }  // namespace gpu