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

ui/gl/gl_image_glx.h

Index: ui/gl/gl_image_glx.h
diff --git a/ui/gl/gl_image_glx.h b/ui/gl/gl_image_glx.h
index d94520200d882e9c8345310c92c72375589910f1..0adb29ede9685109bd6af7a0cf5c20bcc381f764 100644
--- a/ui/gl/gl_image_glx.h
+++ b/ui/gl/gl_image_glx.h
@@ -19,7 +19,7 @@ class GL_EXPORT GLImageGLX : public GLImage {
   virtual bool Initialize();
 
   // 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
verify that Destroy has been called in the dtor instead of calling it from
there.

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