During image destroy, delete textures only if we have a GL context.

ui/gl/gl_image_io_surface.h

Index: ui/gl/gl_image_io_surface.h
diff --git a/ui/gl/gl_image_io_surface.h b/ui/gl/gl_image_io_surface.h
index 79bf41cfbf42acb25435cdda5301e0eaaadc5b68..b81d61a2f30a21078a00a41437d4560fed6d0ec7 100644
--- a/ui/gl/gl_image_io_surface.h
+++ b/ui/gl/gl_image_io_surface.h
@@ -19,7 +19,7 @@ class GL_EXPORT GLImageIOSurface : public GLImage {
   bool Initialize(gfx::GpuMemoryBufferHandle buffer);
 
   // Overridden from GLImage:
-  virtual void Destroy() OVERRIDE {}
+  virtual void Destroy(bool have_context) OVERRIDE {}

[reveman, 2014/05/29 16:30:34]

I think this will fail to compile. You need to update the .cc file too. Please
add an implementation of Destroy to the .cc file that calls io_surface_.reset()
and verify that it has been called in the dtor.

   virtual gfx::Size GetSize() OVERRIDE;
   virtual bool BindTexImage(unsigned target) OVERRIDE;
   virtual void ReleaseTexImage(unsigned target) OVERRIDE {}