[WebGL 2] primitive restart should be always enabled

gpu/command_buffer/service/buffer_manager.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_BUFFER_MANAGER_H_
 #define GPU_COMMAND_BUFFER_SERVICE_BUFFER_MANAGER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 257 matching lines @@
   // Tells whether a buffer that is emulated using client-side arrays should be
   // set to a non-zero size.
   bool UseNonZeroSizeForClientSideArrayBuffer();
 
   Buffer* GetBufferInfoForTarget(ContextState* state, GLenum target) const;
 
   // base::trace_event::MemoryDumpProvider implementation.
   bool OnMemoryDump(const base::trace_event::MemoryDumpArgs& args,
                     base::trace_event::ProcessMemoryDump* pmd) override;
 
+  void SetPrimitiveRestartState(bool enabled);
+
  private:
   friend class Buffer;
   friend class TestHelper;  // Needs access to DoBufferData.
   friend class BufferManagerTestBase;  // Needs access to DoBufferSubData.
 
   void StartTracking(Buffer* buffer);
   void StopTracking(Buffer* buffer);
 
   // Does a glBufferSubData and updates the approriate accounting.
   // Assumes the values have already been validated.
@@ skipping 31 matching lines @@
   // Whether or not buffers can be bound to multiple targets.
   bool allow_buffers_on_multiple_targets_;
 
   // Whether or not allow using GL_FIXED type for vertex attribs.
   bool allow_fixed_attribs_;
 
   // Counts the number of Buffer allocated with 'this' as its manager.
   // Allows to check no Buffer will outlive this.
   unsigned int buffer_count_;
 
+  bool primitive_restart_enabled_;
+
   bool have_context_;
   bool use_client_side_arrays_for_stream_buffers_;
 
   DISALLOW_COPY_AND_ASSIGN(BufferManager);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_BUFFER_MANAGER_H_