Revert "Reland "remove toString""

This reverts commit 92e37b6d79f12ccfaaf7671413316952d182267d.

Reason for revert: toString still used by flutter

Original change's description:
> Reland "remove toString"
> 
> This reverts commit 32a4910e57b1fdd3c8671de1ee85e05ca21d079f.
> 
> Reason for revert: SkMatrix::toString use has been removed from flutter and has been picked up in fuchsia
> 
> Original change's description:
> > Revert "remove toString"
> > 
> > This reverts commit 5191880cbf3ee4d122b0d11b4945fbab0784fda7.
> > 
> > Reason for revert: broke flutter
> > 
> > Original change's description:
> > > remove toString
> > > 
> > > toString may have been used by obsolete debugger only
> > > find out if that is so
> > > 
> > > R=​brianosman@google.com,bsalomon@google.com
> > > 
> > > Docs-Preview: https://skia.org/?cl=119894
> > > Bug:830651
> > > Change-Id: I737f19b7d3fbc869bea2f443fa3b5ed7c1393ffd
> > > Reviewed-on: https://skia-review.googlesource.com/119894
> > > Commit-Queue: Cary Clark <caryclark@google.com>
> > > Reviewed-by: Brian Salomon <bsalomon@google.com>
> > 
> > TBR=bsalomon@google.com,brianosman@google.com,caryclark@google.com,caryclark@skia.org
> > 
> > Change-Id: I9f81de6c3615ee0608bcea9081b77239b4b8816c
> > No-Presubmit: true
> > No-Tree-Checks: true
> > No-Try: true
> > Bug: 830651
> > Reviewed-on: https://skia-review.googlesource.com/129340
> > Reviewed-by: Cary Clark <caryclark@google.com>
> > Commit-Queue: Cary Clark <caryclark@google.com>
> 
> TBR=bsalomon@google.com,brianosman@google.com,caryclark@google.com,caryclark@skia.org
> 
> # Not skipping CQ checks because original CL landed > 1 day ago.
> 
> Bug: 830651
> Change-Id: Ida8725b6051132d8c46faf99358a8fcc1bcabf34
> Reviewed-on: https://skia-review.googlesource.com/129623
> Reviewed-by: Cary Clark <caryclark@skia.org>
> Reviewed-by: Cary Clark <caryclark@google.com>
> Commit-Queue: Cary Clark <caryclark@google.com>

TBR=bsalomon@google.com,brianosman@google.com,caryclark@google.com,caryclark@skia.org

Change-Id: Iafc59ffc1b3db67c520ba31bf12d68e1b46c0ea2
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 830651
Reviewed-on: https://skia-review.googlesource.com/131082
Reviewed-by: Cary Clark <caryclark@google.com>
Commit-Queue: Cary Clark <caryclark@google.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/src/shaders/SkPerlinNoiseShader.cpp b/src/shaders/SkPerlinNoiseShader.cpp
index b3dc9d428f..d864e165e5 100644
--- a/src/shaders/SkPerlinNoiseShader.cpp
+++ b/src/shaders/SkPerlinNoiseShader.cpp
@@ -364,6 +364,7 @@ public:
     std::unique_ptr<GrFragmentProcessor> asFragmentProcessor(const GrFPArgs&) const override;
 #endif
 
+    void toString(SkString* str) const override;
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPerlinNoiseShaderImpl)
 
 protected:
@@ -1476,6 +1477,37 @@ std::unique_ptr<GrFragmentProcessor> SkPerlinNoiseShaderImpl::asFragmentProcesso
 
 #endif
 
+void SkPerlinNoiseShaderImpl::toString(SkString* str) const {
+    str->append("SkPerlinNoiseShaderImpl: (");
+
+    str->append("type: ");
+    switch (fType) {
+        case kFractalNoise_Type:
+            str->append("\"fractal noise\"");
+            break;
+        case kTurbulence_Type:
+            str->append("\"turbulence\"");
+            break;
+        default:
+            str->append("\"unknown\"");
+            break;
+    }
+    str->append(" base frequency: (");
+    str->appendScalar(fBaseFrequencyX);
+    str->append(", ");
+    str->appendScalar(fBaseFrequencyY);
+    str->append(") number of octaves: ");
+    str->appendS32(fNumOctaves);
+    str->append(" seed: ");
+    str->appendScalar(fSeed);
+    str->append(" stitch tiles: ");
+    str->append(fStitchTiles ? "true " : "false ");
+
+    this->INHERITED::toString(str);
+
+    str->append(")");
+}
+
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
 static bool valid_input(SkScalar baseX, SkScalar baseY, int numOctaves, const SkISize* tileSize,