Revert "remove unused SkMeshUtils and SkBoundaryPatch"

This reverts commit 5e21e0991968271ee37f446de7e08620ad1b50bb.

Reason for revert: Breaks Pdfium build see:
    https://chromium-swarm.appspot.com/task?id=3504e60d4bc10810&refresh=10

Original change's description:
> remove unused SkMeshUtils and SkBoundaryPatch
> 
> BUG=skia:6366
> 
> Change-Id: Ibacd397e0a246dbeefde074c98712ada3848a7b6
> Reviewed-on: https://skia-review.googlesource.com/9852
> Reviewed-by: Mike Reed <reed@google.com>
> Commit-Queue: Mike Reed <reed@google.com>
> 

TBR=djsollen@google.com,reed@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:6366

Change-Id: I2403bae0a17bce8eeec743c6f433bb51b214e669
Reviewed-on: https://skia-review.googlesource.com/9891
Reviewed-by: Stephan Altmueller <stephana@google.com>
Commit-Queue: Stephan Altmueller <stephana@google.com>

2 files changed, 116 insertions, 0 deletions

diff --git a/include/utils/SkBoundaryPatch.h b/include/utils/SkBoundaryPatch.h
new file mode 100644
index 0000000000..f8edd594b9
--- /dev/null
+++ b/include/utils/SkBoundaryPatch.h
@@ -0,0 +1,66 @@
+
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#ifndef SkBoundaryPatch_DEFINED
+#define SkBoundaryPatch_DEFINED
+
+#include "SkPoint.h"
+#include "SkRefCnt.h"
+
+class SkBoundary : public SkRefCnt {
+public:
+    
+
+    // These must be 0, 1, 2, 3 for efficiency in the subclass implementations
+    enum Edge {
+        kTop    = 0,
+        kRight  = 1,
+        kBottom = 2,
+        kLeft   = 3
+    };
+    // Edge index goes clockwise around the boundary, beginning at the "top"
+    virtual SkPoint eval(Edge, SkScalar unitInterval) = 0;
+
+private:
+    typedef SkRefCnt INHERITED;
+};
+
+class SkBoundaryPatch {
+public:
+    SkBoundaryPatch();
+    ~SkBoundaryPatch();
+
+    SkBoundary* getBoundary() const { return fBoundary; }
+    SkBoundary* setBoundary(SkBoundary*);
+
+    SkPoint eval(SkScalar unitU, SkScalar unitV);
+    bool evalPatch(SkPoint verts[], int rows, int cols);
+
+private:
+    SkBoundary* fBoundary;
+};
+
+////////////////////////////////////////////////////////////////////////
+
+class SkLineBoundary : public SkBoundary {
+public:
+    SkPoint fPts[4];
+
+    // override
+    virtual SkPoint eval(Edge, SkScalar);
+};
+
+class SkCubicBoundary : public SkBoundary {
+public:
+    // the caller sets the first 12 entries. The 13th is used by the impl.
+    SkPoint fPts[13];
+
+    // override
+    virtual SkPoint eval(Edge, SkScalar);
+};
+
+#endif
diff --git a/include/utils/SkMeshUtils.h b/include/utils/SkMeshUtils.h
new file mode 100644
index 0000000000..7e0e8f4de2
--- /dev/null
+++ b/include/utils/SkMeshUtils.h
@@ -0,0 +1,50 @@
+
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#ifndef SkMeshUtils_DEFINED
+#define SkMeshUtils_DEFINED
+
+#include "SkPoint.h"
+#include "SkColor.h"
+
+class SkBitmap;
+class SkCanvas;
+class SkPaint;
+
+class SkMeshIndices {
+public:
+    SkMeshIndices();
+    ~SkMeshIndices();
+
+    bool init(int texW, int texH, int rows, int cols) {
+        return this->init(NULL, NULL, texW, texH, rows, cols);
+    }
+
+    bool init(SkPoint tex[], uint16_t indices[],
+              int texW, int texH, int rows, int cols);
+
+    int             indexCount() const { return fIndexCount; }
+    const uint16_t* indices() const { return fIndices; }
+
+    size_t          texCount() const { return fTexCount; }
+    const SkPoint*  tex() const { return fTex; }
+
+private:
+    int         fIndexCount, fTexCount;
+    SkPoint*    fTex;
+    uint16_t*   fIndices;
+    void*       fStorage; // may be null
+};
+
+class SkMeshUtils {
+public:
+    static void Draw(SkCanvas*, const SkBitmap&, int rows, int cols,
+                     const SkPoint verts[], const SkColor colors[],
+                     const SkPaint& paint);
+};
+
+#endif