Revert of Revert of Fix SkPaint::measureText for stroked hairline text (https://codereview.chromium.org/354433002/)

Reason for revert:
Rebaseline CL is ready to be submitted

Original issue's description:
> Revert of Fix SkPaint::measureText for stroked hairline text (https://codereview.chromium.org/335603003/)
>
> Reason for revert:
> Caused many shadertext GM failures
>
> Original issue's description:
> > Fix SkPaint::measureText for stroked hairline text
> >
> > SkPaint::measureText and text drawing used different criteria for
> > determining whether text should be drawn as paths or not.
> >
> > Adds tests glyph_pos_(h/n)_(s/f/b) to test the text rendering and the glyph
> > positioning in the rendering. Mainly added in order to define what is the
> > expected text rendering when hairline stroke is used with various transform
> > options.
> >
> > The testcase also tries to note or highlight the fact that SkPaint::measureText
> > is not expected to produce intuitively matching results when compared to a
> > rendering, if the rendering is done so that the device ends up having a device
> > transform.
> >
> > This fixes the glyph_pos_h_s (hairline, stroked) test-case.
> >
> > Ignore shadertext2_pdf-poppler.png gm on
> > Test-Ubuntu13.10-ShuttleA-NoGPU-x86_64-Debug temporarily, as that fails.
> >
> > Committed: https://skia.googlesource.com/skia/+/196af738027c5e18c3eb792dbcaf90ef27821793
>
> TBR=jvanverth@google.com,reed@google.com,kkinnunen@nvidia.com
> NOTREECHECKS=true
> NOTRY=true
>
> Committed: https://skia.googlesource.com/skia/+/abc9bb55ddfeb4b1a7acc335a34841fddcd22d27

R=jvanverth@google.com, reed@google.com, kkinnunen@nvidia.com
TBR=jvanverth@google.com, kkinnunen@nvidia.com, reed@google.com
NOTREECHECKS=true
NOTRY=true

Author: rmistry@google.com

Review URL: https://codereview.chromium.org/349153005

1 files changed, 2 insertions, 10 deletions

diff --git a/src/core/SkPaint.cpp b/src/core/SkPaint.cpp
index 16d8bb2e4e..86b54f22c8 100644
--- a/src/core/SkPaint.cpp
+++ b/src/core/SkPaint.cpp
@@ -11,6 +11,7 @@
 #include "SkColorFilter.h"
 #include "SkData.h"
 #include "SkDeviceProperties.h"
+#include "SkDraw.h"
 #include "SkFontDescriptor.h"
 #include "SkFontHost.h"
 #include "SkGlyphCache.h"
@@ -506,15 +507,6 @@ bool SkPaint::TooBigToUseCache(const SkMatrix& ctm, const SkMatrix& textM) {
     return tooBig(matrix, MaxCacheSize2());
 }
 
-bool SkPaint::tooBigToUseCache(const SkMatrix& ctm) const {
-    SkMatrix textM;
-    return TooBigToUseCache(ctm, *this->setTextMatrix(&textM));
-}
-
-bool SkPaint::tooBigToUseCache() const {
-    SkMatrix textM;
-    return tooBig(*this->setTextMatrix(&textM), MaxCacheSize2());
-}
 
 ///////////////////////////////////////////////////////////////////////////////
 
@@ -997,7 +989,7 @@ SkScalar SkPaint::setupForAsPaths() {
 class SkCanonicalizePaint {
 public:
     SkCanonicalizePaint(const SkPaint& paint) : fPaint(&paint), fScale(0) {
-        if (paint.isLinearText() || paint.tooBigToUseCache()) {
+        if (paint.isLinearText() || SkDraw::ShouldDrawTextAsPaths(paint, SkMatrix::I())) {
             SkPaint* p = fLazy.set(paint);
             fScale = p->setupForAsPaths();
             fPaint = p;