Allow creating GLImage-backed textures with glTexStorage2D.

ui/gl/gl_image.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 UI_GL_GL_IMAGE_H_
 #define UI_GL_GL_IMAGE_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 79 matching lines @@
   //
   // This is a workaround that is not intended to become a permanent part of the
   // GLImage API. Theoretically, when Apple fixes their drivers, this can be
   // removed. https://crbug.com/581777#c36
   virtual bool EmulatingRGB() const;
 
   // An identifier for subclasses. Necessary for safe downcasting.
   enum class Type { NONE, MEMORY, IOSURFACE, DXGI_IMAGE };
   virtual Type GetType() const;
 
-  void SetColorSpaceForScanout(const gfx::ColorSpace& color_space) {
-    color_space_ = color_space;
-  }
+  // Sets the color-space used to scanout from this image, if the image is
+  // used as an overlay.
+  virtual void SetColorSpaceForScanout(const gfx::ColorSpace& color_space);
 
   const gfx::ColorSpace& color_space() const { return color_space_; }
 
  protected:
   virtual ~GLImage() {}
 
   gfx::ColorSpace color_space_;
 
  private:
   friend class base::RefCounted<GLImage>;
 
   DISALLOW_COPY_AND_ASSIGN(GLImage);
 };
 
 }  // namespace gl
 
 #endif  // UI_GL_GL_IMAGE_H_