Revert of Cleanup of shader building system (patchset #25 id:470001 of https://codereview.chromium.org/611653002/)

Reason for revert:
Seems to have messed up windows 7 gms

Original issue's description:
> Cleanup of shader building system
>
> this is a huge refactor and cleanup of the gl shader building system in
> Skia.  The entire shader building pipeline is now part of
> GrGLProgramCreator, which takes a gp, and some fps, and creates a
> program.  I added some subclasses of GrGLProgram to handle the
> eccentricities of Nvpr/Nvpres.  Outside of the builders folder
> and GrGLPrograms, this change is basically just a rename
>
>
> solo gp
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/fe1233c3f12f81bb675718516bbb32f72af726ec

TBR=bsalomon@google.com
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/635533005
diff --git a/src/gpu/GrOptDrawState.cpp b/src/gpu/GrOptDrawState.cpp
index 19507c0..802713e 100644
--- a/src/gpu/GrOptDrawState.cpp
+++ b/src/gpu/GrOptDrawState.cpp
@@ -222,7 +222,7 @@
     }
 
     for (int i = 0; i < ds.numColorStages(); ++i) {
-        const GrFragmentProcessor* fp = ds.getColorStage(i).getProcessor();
+        const GrFragmentProcessor* fp = ds.getColorStage(i).getFragmentProcessor();
         if (!fp->willUseInputColor()) {
             firstColorStage = i;
             fInputColorIsUsed = false;
@@ -270,10 +270,10 @@
 }
 
 static void get_stage_stats(const GrFragmentStage& stage, bool* readsDst, bool* readsFragPosition) {
-    if (stage.getProcessor()->willReadDstColor()) {
+    if (stage.getFragmentProcessor()->willReadDstColor()) {
         *readsDst = true;
     }
-    if (stage.getProcessor()->willReadFragmentPosition()) {
+    if (stage.getFragmentProcessor()->willReadFragmentPosition()) {
         *readsFragPosition = true;
     }
 }