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

ui/gl/gl_image_egl.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/gl/gl_image_egl.h"
 
 #include "ui/gl/gl_surface_egl.h"
 
 namespace gfx {
 
 GLImageEGL::GLImageEGL(gfx::Size size)
     : egl_image_(EGL_NO_IMAGE_KHR), size_(size) {}
 
-GLImageEGL::~GLImageEGL() { Destroy(); }
+GLImageEGL::~GLImageEGL() {
+  Destroy(false);

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

No call to Destroy in dtor please. Instead verify that Destroy has been called.

+}
 
 bool GLImageEGL::Initialize(EGLenum target,
                             EGLClientBuffer buffer,
                             const EGLint* attrs) {
   DCHECK_EQ(EGL_NO_IMAGE_KHR, egl_image_);
   egl_image_ = eglCreateImageKHR(GLSurfaceEGL::GetHardwareDisplay(),
                                  EGL_NO_CONTEXT,
                                  target,
                                  buffer,
                                  attrs);
   if (egl_image_ == EGL_NO_IMAGE_KHR) {
     EGLint error = eglGetError();
     LOG(ERROR) << "Error creating EGLImage: " << error;
     return false;
   }
 
   return true;
 }
 
-void GLImageEGL::Destroy() {
+void GLImageEGL::Destroy(bool have_context) {
   if (egl_image_ != EGL_NO_IMAGE_KHR) {
     eglDestroyImageKHR(GLSurfaceEGL::GetHardwareDisplay(), egl_image_);
     egl_image_ = EGL_NO_IMAGE_KHR;
   }
 }
 
 gfx::Size GLImageEGL::GetSize() { return size_; }
 
 bool GLImageEGL::BindTexImage(unsigned target) {
   DCHECK_NE(EGL_NO_IMAGE_KHR, egl_image_);
   glEGLImageTargetTexture2DOES(target, egl_image_);
   DCHECK_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError());
   return true;
 }
 
 }  // namespace gfx