command_buffer: Add support for creating non-WebGL ES 3 contexts

gpu/command_buffer/service/context_group.h

 // 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.
 
 #ifndef GPU_COMMAND_BUFFER_SERVICE_CONTEXT_GROUP_H_
 #define GPU_COMMAND_BUFFER_SERVICE_CONTEXT_GROUP_H_
 
 #include <vector>
 #include "base/basictypes.h"
 #include "base/containers/hash_tables.h"
@@ skipping 26 matching lines @@
 class TextureManager;
 class SubscriptionRefSet;
 class ValuebufferManager;
 class MemoryTracker;
 struct DisallowedFeatures;
 
 // A Context Group helps manage multiple GLES2Decoders that share
 // resources.
 class GPU_EXPORT ContextGroup : public base::RefCounted<ContextGroup> {
  public:
   enum ContextType {

[Zhenyao Mo, 2015/08/28 17:16:25]

Can we not redefine the ContextType? And just use the one defined in the
gles2_cmd_util.h?

[Kimmo Kinnunen, 2015/08/31 12:23:13]

Sure. (To me, they appeared as being in different level of layering, since they
have different export defines)

     CONTEXT_TYPE_WEBGL1,
     CONTEXT_TYPE_WEBGL2,
-    CONTEXT_TYPE_OTHER,
-    CONTEXT_TYPE_UNDEFINED
+    CONTEXT_TYPE_OPENGLES2,
+    CONTEXT_TYPE_OPENGLES3
   };
 
-  static ContextType GetContextType(unsigned webgl_version);
-
   ContextGroup(
       const scoped_refptr<MailboxManager>& mailbox_manager,
       const scoped_refptr<MemoryTracker>& memory_tracker,
       const scoped_refptr<ShaderTranslatorCache>& shader_translator_cache,
       const scoped_refptr<FramebufferCompletenessCache>&
           framebuffer_completeness_cache,
       const scoped_refptr<FeatureInfo>& feature_info,
       const scoped_refptr<SubscriptionRefSet>& subscription_ref_set,
       const scoped_refptr<ValueStateMap>& pending_valuebuffer_state,
       bool bind_generates_resource);
@@ skipping 245 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(ContextGroup);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_CONTEXT_GROUP_H_