IOSurface CGL context current lifetime cleanup

content/browser/compositor/io_surface_texture_mac.h

Index: content/browser/compositor/io_surface_texture_mac.h
diff --git a/content/browser/compositor/io_surface_texture_mac.h b/content/browser/compositor/io_surface_texture_mac.h
index 7acd61a369567b1f01fc2962008f00f44712f643..b44a4b4750dd6688210508eb20f9f3e9a9b9f9e5 100644
--- a/content/browser/compositor/io_surface_texture_mac.h
+++ b/content/browser/compositor/io_surface_texture_mac.h
@@ -49,21 +49,15 @@ class IOSurfaceTexture
 
   // Set IOSurfaceTexture that will be drawn on the next NSView drawRect.
   bool SetIOSurface(
-      scoped_refptr<IOSurfaceContext> context,
       IOSurfaceID io_surface_id,
       const gfx::Size& pixel_size) WARN_UNUSED_RESULT;
 
-  // Get the CGL renderer ID currently associated with this context.
-  int GetRendererID();
-
   // Blit the IOSurface to the rectangle specified by |window_rect| in DIPs,
   // with the origin in the lower left corner. If the window rect's size is
   // larger than the IOSurface, the remaining right and bottom edges will be
   // white. |window_scale_factor| is 1 in normal views, 2 in HiDPI views.
   bool DrawIOSurface() WARN_UNUSED_RESULT;
 
-  bool HasIOSurface() { return !!io_surface_.get(); }
-
   // Returns true if the offscreen context used by this surface has been
   // poisoned.
   bool HasBeenPoisoned() const;
@@ -77,8 +71,7 @@ class IOSurfaceTexture
 
   // Unref the IOSurfaceTexture and delete the associated GL texture. If the GPU
   // process is no longer referencing it, this will delete the IOSurface.
-  void UnrefIOSurface();
-  void UnrefIOSurfaceWithContextCurrent();
+  void ReleaseIOSurfaceAndTexture();
 
   // Check for GL errors and store the result in error_. Only return new
   // errors