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

gpu/command_buffer/service/texture_definition.cc

 // Copyright 2014 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 "gpu/command_buffer/service/texture_definition.h"
 
 #include "gpu/command_buffer/service/texture_manager.h"
 #include "ui/gl/gl_image.h"
 #include "ui/gl/gl_implementation.h"
 #include "ui/gl/scoped_binders.h"
 
 #if !defined(OS_MACOSX)
 #include "ui/gl/gl_surface_egl.h"
 #endif
 
 namespace gpu {
 namespace gles2 {
 
 namespace {
 
 class GLImageSync : public gfx::GLImage {
  public:
   explicit GLImageSync(
       const scoped_refptr<NativeImageBuffer>& buffer);
 
   // Implement GLImage.
-  virtual void Destroy() OVERRIDE;
+  virtual void Destroy(bool have_context) OVERRIDE;
   virtual gfx::Size GetSize() OVERRIDE;
   virtual bool BindTexImage(unsigned target) OVERRIDE;
   virtual void ReleaseTexImage(unsigned target) OVERRIDE;
   virtual void WillUseTexImage() OVERRIDE;
   virtual void WillModifyTexImage() OVERRIDE;
   virtual void DidModifyTexImage() OVERRIDE;
 
   virtual void DidUseTexImage() OVERRIDE;
   virtual void SetReleaseAfterUse() OVERRIDE;
 
@@ skipping 10 matching lines @@
     : buffer_(buffer) {
   if (buffer)
     buffer->AddClient(this);
 }
 
 GLImageSync::~GLImageSync() {
   if (buffer_)
     buffer_->RemoveClient(this);
 }
 
-void GLImageSync::Destroy() {}
+void GLImageSync::Destroy(bool have_context) {
+}
 
 gfx::Size GLImageSync::GetSize() {
   NOTREACHED();
   return gfx::Size();
 }
 
 bool GLImageSync::BindTexImage(unsigned target) {
   NOTREACHED();
   return false;
 }
@@ skipping 368 matching lines @@
 
   // All structural changes should have orphaned the texture.
   if (image_buffer_ && !texture->GetLevelImage(texture->target(), 0))
     return false;
 
   return true;
 }
 
 }  // namespace gles2
 }  // namespace gpu