ui: Add ScheduleOverlayPlane API to GLImage.

ui/gl/gl_image.h

Index: ui/gl/gl_image.h
diff --git a/ui/gl/gl_image.h b/ui/gl/gl_image.h
index 45303fd64602321259973a4090478e645390ca37..86f6467f83408ad53b1b9c361feb25069ce6e355 100644
--- a/ui/gl/gl_image.h
+++ b/ui/gl/gl_image.h
@@ -6,6 +6,10 @@
 #define UI_GL_GL_IMAGE_H_
 
 #include "base/memory/ref_counted.h"
+#include "ui/gfx/native_widget_types.h"
+#include "ui/gfx/overlay_transform.h"
+#include "ui/gfx/rect.h"
+#include "ui/gfx/rect_f.h"
 #include "ui/gfx/size.h"
 #include "ui/gl/gl_export.h"
 
@@ -41,6 +45,13 @@ class GL_EXPORT GLImage : public base::RefCounted<GLImage> {
   // Called after the texture image data has been modified.
   virtual void DidModifyTexImage() = 0;
 
+  // Schedule image as an overlay plane to be shown at swap time for |widget|.

[reveman, 2014/07/31 18:40:32]

Note: I think this comment is enough here. I'd rather not duplicate the text in
GL_CHROMIUM_schedule_overlay_plane.txt here.

+  virtual bool ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
+                                    int z_order,
+                                    OverlayTransform transform,
+                                    const Rect& bounds_rect,
+                                    const RectF& crop_rect) = 0;
+
   // Indicate that image should be released after use.
   // (For an Android work-around only).
   virtual void SetReleaseAfterUse();