Mozart: Avoid blocking in glCheckFramebufferStatus().

mojo/skia/ganesh_image_factory.cc

 // Copyright 2016 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.
 
 #ifndef GL_GLEXT_PROTOTYPES
 #define GL_GLEXT_PROTOTYPES
 #endif
 
 #include "mojo/skia/ganesh_image_factory.h"
 
@@ skipping 23 matching lines @@
   DCHECK(texture_id);
   DCHECK(width);
   DCHECK(height);
 
   // TODO(jeffbrown): Give the caller more control over these parameters.
   GrGLTextureInfo info;
   info.fTarget = GL_TEXTURE_2D;
   info.fID = texture_id;
 
   GrBackendTextureDesc desc;
-  desc.fFlags = kRenderTarget_GrBackendTextureFlag;
+  desc.fFlags = kNone_GrBackendTextureFlag;
   desc.fWidth = width;
   desc.fHeight = height;
   desc.fConfig = kSkia8888_GrPixelConfig;
   desc.fOrigin = origin;
   desc.fTextureHandle = reinterpret_cast<GrBackendObject>(&info);
   return ::skia::AdoptRef(SkImage::NewFromTexture(
       scope.gr_context().get(), desc, kPremul_SkAlphaType, &ReleaseThunk,
       new base::Closure(release_callback)));
 }
 
@@ skipping 22 matching lines @@
       glCreateAndConsumeTextureCHROMIUM(GL_TEXTURE_2D, mailbox_name_);
   if (!texture_id)
     return nullptr;
 
   // TODO(jeffbrown): Give the caller more control over these parameters.
   GrGLTextureInfo info;
   info.fTarget = GL_TEXTURE_2D;
   info.fID = texture_id;
 
   GrBackendTextureDesc desc;
-  desc.fFlags = kRenderTarget_GrBackendTextureFlag;
+  desc.fFlags = kNone_GrBackendTextureFlag;
   desc.fWidth = getInfo().width();
   desc.fHeight = getInfo().height();
   desc.fConfig = kSkia8888_GrPixelConfig;
   desc.fOrigin = origin_;
   desc.fTextureHandle = reinterpret_cast<GrBackendObject>(&info);
   return context->textureProvider()->wrapBackendTexture(desc,
                                                         kAdopt_GrWrapOwnership);
 }
 
 }  // namespace skia
 }  // namespace mojo