Revert "Revert "make SkClipStack.h private (in src)""

This reverts commit 1c8e82b72bfeb1a02297688cf082c365b62705f7.

Reason for revert: previous reason to revert fixed. relanding.

Original change's description:
> Revert "make SkClipStack.h private (in src)"
> 
> This reverts commit 3efca0a2a8fc412a318199fa386c1375b55ee81e.
> 
> Reason for revert: update caller in GraphicsContext.cpp
> 
> Original change's description:
> > make SkClipStack.h private (in src)
> > 
> > BUG=skia:
> > 
> > Change-Id: I05f1140fe483f4a92093cb9783c6e9f067420d30
> > Reviewed-on: https://skia-review.googlesource.com/8481
> > Reviewed-by: Florin Malita <fmalita@chromium.org>
> > Commit-Queue: Mike Reed <reed@google.com>
> > 
> 
> TBR=fmalita@chromium.org,reed@google.com,reviews@skia.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=skia:
> 
> Change-Id: Iff1138d72ff2d1187d522487fe76ea293f706f60
> Reviewed-on: https://skia-review.googlesource.com/8501
> Commit-Queue: Mike Reed <reed@google.com>
> Reviewed-by: Mike Reed <reed@google.com>
> 

TBR=reviews@skia.org,fmalita@chromium.org,reed@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Change-Id: If7e54653c00a0c57ffa60b0c9f40dd0ffad2fe42
Reviewed-on: https://skia-review.googlesource.com/8522
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Reed <reed@google.com>
2 files changed