Move shader compiling to ProgramBuilder and various ShaderBuilder cleanups.

src/gpu/gl/builders/GrGLVertexShaderBuilder.h

Index: src/gpu/gl/builders/GrGLVertexShaderBuilder.h
diff --git a/src/gpu/gl/builders/GrGLVertexShaderBuilder.h b/src/gpu/gl/builders/GrGLVertexShaderBuilder.h
index dc38ff2a323630b8bb4f8e0145b206e7facb1ee1..81aebd41b88643933e77abb4853ca8809f4db59e 100644
--- a/src/gpu/gl/builders/GrGLVertexShaderBuilder.h
+++ b/src/gpu/gl/builders/GrGLVertexShaderBuilder.h
@@ -9,6 +9,7 @@
 #define GrGLVertexShader_DEFINED
 
 #include "GrGLShaderBuilder.h"
+#include "gl/GrGLTypes.h"
 #include "GrGeometryProcessor.h"
 
 class GrGLVarying;
@@ -38,11 +39,12 @@ private:
      * private helpers for compilation by GrGLProgramBuilder
      */
     void bindVertexAttributes(GrGLuint programID);
-    bool compileAndAttachShaders(GrGLuint programId, SkTDArray<GrGLuint>* shaderIds);
 
     // an internal call which checks for uniquness of a var before adding it to the list of inputs
     bool addAttribute(const GrShaderVar& var);
 
+    void onFinalize() override {}
+    
     const char* fRtAdjustName;
 
     friend class GrGLProgramBuilder;