StreamTextureImages can now override a Texture's service id

gpu/command_buffer/service/texture_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_TEXTURE_MANAGER_H_
 #define GPU_COMMAND_BUFFER_SERVICE_TEXTURE_MANAGER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 138 matching lines @@
   void SetServiceId(GLuint service_id) {
     DCHECK(service_id);
     DCHECK_EQ(owned_service_id_, service_id_);
     service_id_ = service_id;
     owned_service_id_ = service_id;
   }
 
   // Causes us to report |service_id| as our service id, but does not delete
   // it when we are destroyed.  Will rebind any OES_EXTERNAL texture units to
   // our new service id in all contexts.  If |service_id| is zero, then we
-  // revert to our original service id.
+  // revert to our original service id. The unowned service id is automatically
+  // reset whenever an image is bound to this Texture to ensure the unowned id
+  // doesn't outlive the image that owns it.
   void SetUnownedServiceId(GLuint service_id);
 
   // Returns the target this texure was first bound to or 0 if it has not
   // been bound. Once a texture is bound to a specific target it can never be
   // bound to a different target.
   GLenum target() const {
     return target_;
   }
 
   bool SafeToRenderFrom() const {
@@ skipping 1005 matching lines @@
  private:
   DecoderTextureState* texture_state_;
   base::TimeTicks begin_time_;
   DISALLOW_COPY_AND_ASSIGN(ScopedTextureUploadTimer);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_TEXTURE_MANAGER_H_