Implement path cover with nv_path_rendering

src/gpu/GrGpu.cpp

Index: src/gpu/GrGpu.cpp
diff --git a/src/gpu/GrGpu.cpp b/src/gpu/GrGpu.cpp
index a4aa00eac12b53406a4cf0a02a82438c84743769..f8c528150c7c39e25cf2203e2699b3aa1fa039af 100644
--- a/src/gpu/GrGpu.cpp
+++ b/src/gpu/GrGpu.cpp
@@ -349,10 +349,8 @@ void GrGpu::onDraw(const DrawInfo& info) {
 void GrGpu::onStencilPath(const GrPath* path, const SkStrokeRec&, SkPath::FillType fill) {
     this->handleDirtyContext();
 
-    // TODO: make this more efficient (don't copy and copy back)
-    GrAutoTRestore<GrStencilSettings> asr(this->drawState()->stencil());
+    this->drawState()->setStencilPathSettings(this->getStencilPathSettings(*path, fill));
 
-    this->setStencilPathSettings(*path, fill, this->drawState()->stencil());
     GrDrawState::AutoRestoreEffects are;
     if (!this->setupClipAndFlushState(kStencilPath_DrawType, NULL, &are)) {
         return;
@@ -361,6 +359,20 @@ void GrGpu::onStencilPath(const GrPath* path, const SkStrokeRec&, SkPath::FillTy
     this->onGpuStencilPath(path, fill);
 }
 
+void GrGpu::onDrawPath(const GrPath* path, const SkStrokeRec& stroke, SkPath::FillType fill) {
+    this->handleDirtyContext();
+
+    this->drawState()->setStencilPathSettings(this->getStencilPathSettings(*path, fill));
+
+    GrDrawState::AutoRestoreEffects are;
+    // TODO: Some blending effects require destination texture, see onDraw
+    if (!this->setupClipAndFlushState(kDrawPath_DrawType, NULL, &are)) {
+        return;
+    }
+
+    this->onGpuDrawPath(path, fill);
+}
+
 void GrGpu::finalizeReservedVertices() {
     SkASSERT(NULL != fVertexPool);
     fVertexPool->unlock();