Mozart: Avoid blocking in glCheckFramebufferStatus().

mojo/skia/ganesh_image_factory.cc

Index: mojo/skia/ganesh_image_factory.cc
diff --git a/mojo/skia/ganesh_image_factory.cc b/mojo/skia/ganesh_image_factory.cc
index 5ae6f7dd4cefc9e72fc6fecc9791b1faacce7845..95d3ef1fbe9fa477223b0f61a877ef20dda1d466 100644
--- a/mojo/skia/ganesh_image_factory.cc
+++ b/mojo/skia/ganesh_image_factory.cc
@@ -41,7 +41,7 @@ void ReleaseThunk(void* data) {
   info.fID = texture_id;
 
   GrBackendTextureDesc desc;
-  desc.fFlags = kRenderTarget_GrBackendTextureFlag;
+  desc.fFlags = kNone_GrBackendTextureFlag;
   desc.fWidth = width;
   desc.fHeight = height;
   desc.fConfig = kSkia8888_GrPixelConfig;
@@ -84,7 +84,7 @@ GrTexture* MailboxTextureImageGenerator::onGenerateTexture(
   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;