Initial version of external_oes texture support and unit test

src/gpu/glsl/GrGLSLTextureSampler.h

Index: src/gpu/glsl/GrGLSLTextureSampler.h
diff --git a/src/gpu/glsl/GrGLSLTextureSampler.h b/src/gpu/glsl/GrGLSLTextureSampler.h
index a4fbf550f25039dad0ed20d013b6a86abe8b0551..6f8addd393b23143cc1b602adce0787c06d8ee0e 100644
--- a/src/gpu/glsl/GrGLSLTextureSampler.h
+++ b/src/gpu/glsl/GrGLSLTextureSampler.h
@@ -28,7 +28,10 @@ public:
     // this is .abcd
     const char* swizzle() const { return fSwizzle; }
 
+    GrSLType samplerType() const { return fSamplerType; }
+
 private:
+    GrSLType      fSamplerType;

[egdaniel, 2015/11/20 21:57:43]

do you set fSampleType anywhere? 

[bsalomon, 2015/11/20 22:43:55]

woops, this was an old way of doing things, removed member and getter.

     UniformHandle fSamplerUniform;
     GrPixelConfig fConfig;
     char          fSwizzle[5];