Move edge GrEffects to locally defined classes

src/gpu/effects/GrEdgeEffect.h

Index: src/gpu/effects/GrEdgeEffect.h
===================================================================
--- src/gpu/effects/GrEdgeEffect.h	(revision 8491)
+++ src/gpu/effects/GrEdgeEffect.h	(working copy)
@@ -1,85 +0,0 @@
-/*
- * Copyright 2013 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef GrEdgeEffect_DEFINED
-#define GrEdgeEffect_DEFINED
-
-#include "GrEffect.h"
-
-class GrGLEdgeEffect;
-
-/**
- * The output of this effect is one of three different edge types: hairlines, quads,
- * and hairline quads.
- */
-
-class GrEdgeEffect : public GrEffect {
-public:
-    enum EdgeType {
-        /* 1-pixel wide line
-           2D implicit device coord line eq (a*x + b*y +c = 0). 4th component unused. */
-        kHairLine_EdgeType = 0,
-        /* Quadratic specified by 0=u^2-v canonical coords. u and v are the first
-           two components of the vertex attribute. Coverage is based on signed
-           distance with negative being inside, positive outside. The edge is specified in
-           window space (y-down). If either the third or fourth component of the interpolated
-           vertex coord is > 0 then the pixel is considered outside the edge. This is used to
-           attempt to trim to a portion of the infinite quad. Requires shader derivative
-           instruction support. */
-        kQuad_EdgeType,
-        /* Similar to above but for hairline quadratics. Uses unsigned distance.
-           Coverage is min(0, 1-distance). 3rd & 4th component unused. Requires
-           shader derivative instruction support. */
-        kHairQuad_EdgeType,
-
-        kLast_EdgeType = kHairQuad_EdgeType
-    };
-    static const int kEdgeTypeCount = kLast_EdgeType + 1;
-
-    static GrEffectRef* Create(EdgeType type) {
-        // we go through this so we only have one copy of each effect
-        static GrEffectRef* gEdgeEffectRef[kEdgeTypeCount] = {
-            CreateEffectRef(AutoEffectUnref(SkNEW_ARGS(GrEdgeEffect, (kHairLine_EdgeType)))),
-            CreateEffectRef(AutoEffectUnref(SkNEW_ARGS(GrEdgeEffect, (kQuad_EdgeType)))),
-            CreateEffectRef(AutoEffectUnref(SkNEW_ARGS(GrEdgeEffect, (kHairQuad_EdgeType)))),
-        };
-        static SkAutoTUnref<GrEffectRef> gUnref0(gEdgeEffectRef[0]);
-        static SkAutoTUnref<GrEffectRef> gUnref1(gEdgeEffectRef[1]);
-        static SkAutoTUnref<GrEffectRef> gUnref2(gEdgeEffectRef[2]);
-
-        gEdgeEffectRef[type]->ref();
-        return gEdgeEffectRef[type];
-    }
-
-    virtual ~GrEdgeEffect() {}
-
-    static const char* Name() { return "Edge"; }
-
-    virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags) const SK_OVERRIDE;
-
-    typedef GrGLEdgeEffect GLEffect;
-
-    virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE;
-
-    EdgeType edgeType() const { return fEdgeType; }
-
-private:
-    GrEdgeEffect(EdgeType edgeType);
-
-    virtual bool onIsEqual(const GrEffect& other) const SK_OVERRIDE {
-        const GrEdgeEffect& qee = CastEffect<GrEdgeEffect>(other);
-        return qee.fEdgeType == fEdgeType;
-    }
-
-    EdgeType fEdgeType;
-
-    GR_DECLARE_EFFECT_TEST;
-
-    typedef GrEffect INHERITED;
-};
-
-#endif