Add GLStreamTextureImage

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>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/rect_f.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/overlay_transform.h"
 #include "ui/gl/gl_export.h"
 
 namespace base {
 namespace trace_event {
 class ProcessMemoryDump;
 }
 }
 
+namespace gfx {
+class Transform;
+}
+
 namespace gl {
 
 // Encapsulates an image that can be bound and/or copied to a texture, hiding
 // platform specific management.
 class GL_EXPORT GLImage : public base::RefCounted<GLImage> {
  public:
   GLImage() {}
 
   // Destroys the image.
   virtual void Destroy(bool have_context) = 0;
@@ skipping 29 matching lines @@
                                     gfx::OverlayTransform transform,
                                     const gfx::Rect& bounds_rect,
                                     const gfx::RectF& crop_rect) = 0;
 
   // Dumps information about the memory backing the GLImage to a dump named
   // |dump_name|.
   virtual void OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd,
                             uint64_t process_tracing_id,
                             const std::string& dump_name) = 0;
 
+  // Get the matrix
+  // Copy a custom matrix for this image into |matrix|.  |matrixId| describes
+  // the matrix in question.  Returns true if |matrix| is filled in, false
+  // if this GLImage doesn't support the custom matrix.  |matrix| is unmodified
+  // in that case.
+  virtual bool GetCustomMatrix(int matrixId, float matrix[16]);
+
  protected:
   virtual ~GLImage() {}
 
  private:
   friend class base::RefCounted<GLImage>;
 
   DISALLOW_COPY_AND_ASSIGN(GLImage);
 };
 
 }  // namespace gl
 
 #endif  // UI_GL_GL_IMAGE_H_