Integers can now be passed as uniforms

src/gpu/glsl/GrGLSLProgramDataManager.h

 /*
  * 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 GrGLSLProgramDataManager_DEFINED
 #define GrGLSLProgramDataManager_DEFINED
 
 #include "GrResourceHandle.h"
 #include "SkTypes.h"
 
 class SkMatrix;
 
 /** Manages the resources used by a shader program.
  * The resources are objects the program uses to communicate with the
  * application code.
  */
 class GrGLSLProgramDataManager : SkNoncopyable {
 public:
     GR_DEFINE_RESOURCE_HANDLE_CLASS(UniformHandle);
 
     virtual ~GrGLSLProgramDataManager() {}
 
     /** Functions for uploading uniform values. The varities ending in v can be used to upload to an
      *  array of uniforms. arrayCount must be <= the array count of the uniform.
      */
+    virtual void set1i(UniformHandle, int32_t) const = 0;
     virtual void set1f(UniformHandle, float v0) const = 0;
     virtual void set1fv(UniformHandle, int arrayCount, const float v[]) const = 0;
     virtual void set2f(UniformHandle, float, float) const = 0;
     virtual void set2fv(UniformHandle, int arrayCount, const float v[]) const = 0;
     virtual void set3f(UniformHandle, float, float, float) const = 0;
     virtual void set3fv(UniformHandle, int arrayCount, const float v[]) const = 0;
     virtual void set4f(UniformHandle, float, float, float, float) const = 0;
     virtual void set4fv(UniformHandle, int arrayCount, const float v[]) const = 0;
     // matrices are column-major, the first three upload a single matrix, the latter three upload
     // arrayCount matrices into a uniform array.
@@ skipping 13 matching lines @@
                                                const SkMatrix& matrix) const = 0;
 
 protected:
     GrGLSLProgramDataManager() {}
 
 private:
     typedef SkNoncopyable INHERITED;
 };
 
 #endif