Revert of Remove GP from drawstate, revision of invariant output for GP

src/gpu/GrAAConvexPathRenderer.cpp

Index: src/gpu/GrAAConvexPathRenderer.cpp
diff --git a/src/gpu/GrAAConvexPathRenderer.cpp b/src/gpu/GrAAConvexPathRenderer.cpp
index 0007e33b7fb3100cdc9dce1644d46e792a85596f..44782dd2797aad2c3b1233b42b929900956e2d89 100644
--- a/src/gpu/GrAAConvexPathRenderer.cpp
+++ b/src/gpu/GrAAConvexPathRenderer.cpp
@@ -596,8 +596,8 @@
         return true;
     }
 
-    virtual void onGetInvariantOutputCoverage(GrInitInvariantOutput* out) const SK_OVERRIDE {
-        out->setUnknownSingleComponent();
+    virtual void onComputeInvariantOutput(GrInvariantOutput* inout) const SK_OVERRIDE {
+        inout->mulByUnknownAlpha();
     }
 
     const GrAttribute* fInPosition;
@@ -679,7 +679,8 @@
     // Our computed verts should all be within one pixel of the segment control points.
     devBounds.outset(SK_Scalar1, SK_Scalar1);
 
-    SkAutoTUnref<GrGeometryProcessor> quadProcessor(QuadEdgeEffect::Create(color));
+    GrGeometryProcessor* quadProcessor = QuadEdgeEffect::Create(color);
+    drawState->setGeometryProcessor(quadProcessor)->unref();
 
     GrDrawTarget::AutoReleaseGeometry arg(target, vCount, quadProcessor->getVertexStride(), iCount);
     SkASSERT(quadProcessor->getVertexStride() == sizeof(QuadVertex));
@@ -708,7 +709,6 @@
     for (int i = 0; i < draws.count(); ++i) {
         const Draw& draw = draws[i];
         target->drawIndexed(drawState,
-                            quadProcessor,
                             kTriangles_GrPrimitiveType,
                             vOffset,  // start vertex
                             0,        // start index