Turned on SkSL->GLSL compiler

bench/GLBench.cpp

Index: bench/GLBench.cpp
diff --git a/bench/GLBench.cpp b/bench/GLBench.cpp
index 8cf41c205665100d173201a0925bd8fe4a154b0a..b6975508cfe7335b4bc4e5743348b181d80aaf50 100644
--- a/bench/GLBench.cpp
+++ b/bench/GLBench.cpp
@@ -11,7 +11,10 @@
 #include "GrGpu.h"
 #include "GrTest.h"
 #include "gl/GrGLContext.h"
+#include "gl/builders/GrGLShaderStringBuilder.h"
+#include "SkSLCompiler.h"
 #include <stdio.h>
+#include <string>
 
 const GrGLContext* GLBench::getGLContext(SkCanvas* canvas) {
     // This bench exclusively tests GL calls directly
@@ -61,13 +64,26 @@ void GLBench::onDraw(int loops, SkCanvas* canvas) {
     canvas->getGrContext()->resetContext();
 }
 
-GrGLuint GLBench::CompileShader(const GrGLInterface* gl, const char* shaderSrc, GrGLenum type) {
+GrGLuint GLBench::CompileShader(const GrGLContext* context, const char* sksl, GrGLenum type) {
+    const GrGLInterface* gl = context->interface();
+    std::string glsl;
+    bool result = context->compiler()->toGLSL(type == GR_GL_VERTEX_SHADER 
+                                                                    ? SkSL::Program::kVertex_Kind
+                                                                    : SkSL::Program::kFragment_Kind,
+                                              std::string(sksl),
+                                              GrGLSkSLCapsForContext(*context),
+                                              &glsl);
+    if (!result) {
+        SkDebugf("SkSL compilation failed:\n%s\n%s\n", sksl, 
+                 context->compiler()->errorText().c_str());
+    }
     GrGLuint shader;
     // Create the shader object
     GR_GL_CALL_RET(gl, shader, CreateShader(type));
 
     // Load the shader source
-    GR_GL_CALL(gl, ShaderSource(shader, 1, &shaderSrc, nullptr));
+    const char* glslPtr = glsl.c_str();
+    GR_GL_CALL(gl, ShaderSource(shader, 1, (const char**) &glslPtr, nullptr));
 
     // Compile the shader
     GR_GL_CALL(gl, CompileShader(shader));
@@ -84,10 +100,11 @@ GrGLuint GLBench::CompileShader(const GrGLInterface* gl, const char* shaderSrc,
     return shader;
 }
 
-GrGLuint GLBench::CreateProgram(const GrGLInterface* gl, const char* vshader, const char* fshader) {
-
-    GrGLuint vertexShader = CompileShader(gl, vshader, GR_GL_VERTEX_SHADER);
-    GrGLuint fragmentShader = CompileShader(gl, fshader, GR_GL_FRAGMENT_SHADER);
+GrGLuint GLBench::CreateProgram(const GrGLContext* context, const char* vshader, 
+                                const char* fshader) {
+    const GrGLInterface* gl = context->interface();
+    GrGLuint vertexShader = CompileShader(context, vshader, GR_GL_VERTEX_SHADER);
+    GrGLuint fragmentShader = CompileShader(context, fshader, GR_GL_FRAGMENT_SHADER);
 
     GrGLuint shaderProgram;
     GR_GL_CALL_RET(gl, shaderProgram, CreateProgram());