Refactor separable varying location info to be stored in GrGLProgram subclass

src/gpu/gl/GrGLPathProgram.h

Index: src/gpu/gl/GrGLPathProgram.h
diff --git a/src/gpu/gl/GrGLPathProgram.h b/src/gpu/gl/GrGLPathProgram.h
new file mode 100644
index 0000000000000000000000000000000000000000..503940c015627fbe1a12800d6dca793def4e0518
--- /dev/null
+++ b/src/gpu/gl/GrGLPathProgram.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrGLPathProgram_DEFINED
+#define GrGLPathProgram_DEFINED
+
+#include "gl/GrGLProgram.h"
+#include "gl/GrGLPathProgramDataManager.h"
+
+/*
+ * The default GrGL programs consist of at the very least a vertex and fragment shader.
+ * 1.3+ Nvpr ignores the vertex shader, but both require
+ * specialized methods for setting transform data.  NVPR also requires setting the
+ * projection matrix through a special function call.
+ */
+class GrGLPathProgram : public GrGLProgram {
+protected:
+    typedef GrGLPathProgramDataManager::SeparableVaryingInfoArray SeparableVaryingInfoArray;
+    GrGLPathProgram(GrGLGpu*,
+                    const GrProgramDesc&,
+                    const BuiltinUniformHandles&,
+                    GrGLuint programID,
+                    const UniformInfoArray&,
+                    const SeparableVaryingInfoArray&,
+                    GrGLInstalledGeoProc*,
+                    GrGLInstalledXferProc* xferProcessor,
+                    GrGLInstalledFragProcs* fragmentProcessors,
+                    SkTArray<UniformHandle>* passSamplerUniforms);
+
+private:
+    void didSetData() override;
+    virtual void setTransformData(const GrPrimitiveProcessor&,
+                                  const GrPendingFragmentStage&,
+                                  int index,
+                                  GrGLInstalledFragProc*) override;
+    virtual void onSetRenderTargetState(const GrPrimitiveProcessor&, const GrPipeline&);
+
+    friend class GrGLPathProgramBuilder;
+
+    GrGLPathProgramDataManager fPathProgramDataManager;
+
+    typedef GrGLProgram INHERITED;
+};
+
+#endif