Move shader compiling to ProgramBuilder and various ShaderBuilder cleanups.

src/gpu/gl/builders/GrGLGeometryShaderBuilder.h

Index: src/gpu/gl/builders/GrGLGeometryShaderBuilder.h
diff --git a/src/gpu/gl/builders/GrGLGeometryShaderBuilder.h b/src/gpu/gl/builders/GrGLGeometryShaderBuilder.h
index 4fe8a239616d18a01ad08de33ff95a0971599e72..7691666a601b1799250b8a15a0c610064b59df38 100644
--- a/src/gpu/gl/builders/GrGLGeometryShaderBuilder.h
+++ b/src/gpu/gl/builders/GrGLGeometryShaderBuilder.h
@@ -22,7 +22,7 @@ private:
      */
     void addVarying(const char* name, GrSLPrecision precision, GrGLVarying*);
 
-    bool compileAndAttachShaders(GrGLuint programId, SkTDArray<GrGLuint>* shaderIds);
+    void onFinalize() override {}
 
     friend class GrGLProgramBuilder;