Refactor to separate backend object lifecycle and GpuResource budget decision

src/gpu/gl/GrGLTextureRenderTarget.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef GrGLTextureRenderTarget_DEFINED
 #define GrGLTextureRenderTarget_DEFINED
 
 #include "GrGLGpu.h"
 #include "GrGLTexture.h"
 #include "GrGLRenderTarget.h"
 
 class GrGLGpu;
 
 #ifdef SK_BUILD_FOR_WIN
 // Windows gives bogus warnings about inheriting asTexture/asRenderTarget via dominance.
 #pragma warning(push)
 #pragma warning(disable: 4250)
 #endif
 
 class GrGLTextureRenderTarget : public GrGLTexture, public GrGLRenderTarget {
 public:
     // We're virtually derived from GrSurface (via both GrGLTexture and GrGLRenderTarget) so its
     // constructor must be explicitly called.
     GrGLTextureRenderTarget(GrGLGpu* gpu,
+                            SkBudgeted budgeted,
                             const GrSurfaceDesc& desc,
                             const GrGLTexture::IDDesc& texIDDesc,
                             const GrGLRenderTarget::IDDesc& rtIDDesc)
-        : GrSurface(gpu, texIDDesc.fLifeCycle, desc)
-        , GrGLTexture(gpu, desc, texIDDesc, GrGLTexture::kDerived)
-        , GrGLRenderTarget(gpu, desc, rtIDDesc, GrGLRenderTarget::kDerived) {
-        this->registerWithCache();
+        : GrSurface(gpu, desc)
+        , GrGLTexture(gpu, desc, texIDDesc)
+        , GrGLRenderTarget(gpu, desc, rtIDDesc) {
+        this->registerWithCache(budgeted);
     }
 
+    bool canAttemptStencilAttachment() const override;
+
     void dumpMemoryStatistics(SkTraceMemoryDump* traceMemoryDump) const override;
 
+    static GrGLTextureRenderTarget* CreateWrapped(GrGLGpu* gpu, const GrSurfaceDesc& desc,
+                                                  const GrGLTexture::IDDesc& texIDDesc,
+                                                  const GrGLRenderTarget::IDDesc& rtIDDesc);
 protected:
     void onAbandon() override {
         GrGLRenderTarget::onAbandon();
         GrGLTexture::onAbandon();
     }
 
     void onRelease() override {
         GrGLRenderTarget::onRelease();
         GrGLTexture::onRelease();
     }
 
 private:
+    // Constructor for instances wrapping backend objects.
+    GrGLTextureRenderTarget(GrGLGpu* gpu,
+                            const GrSurfaceDesc& desc,
+                            const GrGLTexture::IDDesc& texIDDesc,
+                            const GrGLRenderTarget::IDDesc& rtIDDesc)
+        : GrSurface(gpu, desc)
+        , GrGLTexture(gpu, desc, texIDDesc)
+        , GrGLRenderTarget(gpu, desc, rtIDDesc) {
+        this->registerWithCacheWrapped();
+    }
+
     // GrGLRenderTarget accounts for the texture's memory and any MSAA renderbuffer's memory.
     size_t onGpuMemorySize() const override {
         return GrGLRenderTarget::onGpuMemorySize();
     }
 
 };
 
 #ifdef SK_BUILD_FOR_WIN
 #pragma warning(pop)
 #endif
 
 #endif