Add initial GLImage tracing + stubs

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 b48b687957c2fae695e31f55554e599a821dd53d..0469b2c68331762fd3cc3c6e78a196117985a8f3 100644
--- a/ui/gl/gl_image.h
+++ b/ui/gl/gl_image.h
@@ -6,6 +6,7 @@
 #define UI_GL_GL_IMAGE_H_
 
 #include "base/memory/ref_counted.h"
+#include "base/trace_event/process_memory_dump.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/rect_f.h"
@@ -61,6 +62,10 @@ class GL_EXPORT GLImage : public base::RefCounted<GLImage> {
                                     const Rect& bounds_rect,
                                     const RectF& crop_rect) = 0;
 
+  virtual void DumpMemory(base::trace_event::ProcessMemoryDump* pmd,
+                          uint64_t process_tracing_id,
+                          const std::string& dump_name) = 0;
+
  protected:
   virtual ~GLImage() {}