Refactor to separate backend object lifecycle and GpuResource budget decision

src/gpu/gl/GrGLStencilAttachment.cpp

Index: src/gpu/gl/GrGLStencilAttachment.cpp
diff --git a/src/gpu/gl/GrGLStencilAttachment.cpp b/src/gpu/gl/GrGLStencilAttachment.cpp
index 15e531be84cb9357659b0b547077a8a352c41e47..aa813ed50edee1fb940302ca79c29356f7f95ea5 100644
--- a/src/gpu/gl/GrGLStencilAttachment.cpp
+++ b/src/gpu/gl/GrGLStencilAttachment.cpp
@@ -19,7 +19,7 @@ size_t GrGLStencilAttachment::onGpuMemorySize() const {
 }
 
 void GrGLStencilAttachment::onRelease() {
-    if (0 != fRenderbufferID && this->shouldFreeResources()) {
+    if (0 != fRenderbufferID) {
         GrGLGpu* gpuGL = (GrGLGpu*) this->getGpu();
         const GrGLInterface* gl = gpuGL->glInterface();
         GR_GL_CALL(gl, DeleteRenderbuffers(1, &fRenderbufferID));