added emitChild() to GrGLFragmentProcessor; removed AutoFragmentChildProcAdvance class

src/gpu/gl/builders/GrGLFragmentShaderBuilder.h

Index: src/gpu/gl/builders/GrGLFragmentShaderBuilder.h
diff --git a/src/gpu/gl/builders/GrGLFragmentShaderBuilder.h b/src/gpu/gl/builders/GrGLFragmentShaderBuilder.h
index 514bcc6e8891a9b3ed65822c6c18e9513950467d..8746fffb8b101f75cb3d637045b2fa736bfd6bfd 100644
--- a/src/gpu/gl/builders/GrGLFragmentShaderBuilder.h
+++ b/src/gpu/gl/builders/GrGLFragmentShaderBuilder.h
@@ -77,37 +77,6 @@ public:
         return ret;
     }
 
-    /* This class is like AutoStageAdvance but used for the child procs of a fragment proc.
-     * Before a proc calls emitCode on one of its children, it should instantiate this
-     * class inside its own scope. This which will update a state in GrGLFragmentBuilder that tracks
-     *  which proc in the tree is about to emit code (it does so by calling GrGLFragmentBuilder::
-     * onBeforeChildProcEmitCode() in the constructor).
-     *
-     * After the child proc emitCode is called, the parent proc should end the scope so the
-     * AutoFragmentChildProcAdvance destructor is called, which will again update a state in
-     * GrGLFragmentShaderBuilder notifying it that the child proc's code has been emitted (it does
-     * so by calling GrGLFragmentBuilder::onAfterChildProcEmitCode()).
-     */
-    class AutoFragmentChildProcAdvance {
-        typedef GrGLProcessor::TransformedCoordsArray TransformedCoordsArray;
-        typedef GrGLProcessor::TextureSamplerArray TextureSamplerArray;
-    public:
-        AutoFragmentChildProcAdvance(int childProcIndex,
-                                     GrGLFPBuilder* builder,
-                                     const GrFragmentProcessor& fp,
-                                     const char* outputColor,
-                                     const TransformedCoordsArray& coords,
-                                     const TextureSamplerArray& samplers,
-                                     const GrFragmentProcessor** childFp,
-                                     SkString* childOutputColor,
-                                     TransformedCoordsArray* childCoords,
-                                     TextureSamplerArray* childSamplers);
-
-        ~AutoFragmentChildProcAdvance();
-    private:
-        GrGLFragmentBuilder* fFsb;
-    };
-
 private:
     /*
      * State that tracks which child proc in the proc tree is currently emitting code.  This is