Fix several issues with drawing text as paths.

src/core/SkPaint.cpp

Index: src/core/SkPaint.cpp
===================================================================
--- src/core/SkPaint.cpp	(revision 10398)
+++ src/core/SkPaint.cpp	(working copy)
@@ -986,7 +986,10 @@
 
     SkScalar textSize = fTextSize;
     this->setTextSize(kCanonicalTextSizeForPaths);
-    return textSize / kCanonicalTextSizeForPaths;
+    SkScalar scale = textSize / kCanonicalTextSizeForPaths;
+    this->setStrokeWidth(fWidth / scale);

[reed1, 2013/07/29 14:44:39]

Can this be: setStrokeWIdth(fWidth * kCanonical / textSize) and avoid the 2nd
divide?

[bungeman-skia, 2013/07/29 14:54:18]

Sure, so long as its the same number, doesn't matter how we get there.

+    //this->setStrokeMiter(fMiterLimit / scale);

[reed1, 2013/07/29 14:44:39]

Do we need this line?

[bungeman-skia, 2013/07/29 14:54:18]

Probably? The only reason it's commented out is that this creates crazy
artifacts in the shadertext2 gm. (The points on the 'A' get pointy.)

[bungeman-skia, 2014/05/22 15:06:25]

Mike pointed out to me that the miter limit is actually a ratio anyway, not a
hard value. As a result, this commented out line should be removed as it does
not need to scale.

+    return scale;
 }
 
 class SkCanonicalizePaint {
@@ -2501,7 +2504,6 @@
     fGlyphCacheProc = paint.getMeasureCacheProc(SkPaint::kForward_TextBufferDirection,
                                                 true);
 
-    fPaint.setLinearText(true);
     fPaint.setMaskFilter(NULL);   // don't want this affecting our path-cache lookup
 
     if (fPaint.getPathEffect() == NULL && !has_thick_frame(fPaint)) {
@@ -2509,7 +2511,7 @@
     }
 
     // can't use our canonical size if we need to apply patheffects
-    if (fPaint.getPathEffect() == NULL) {
+    if (fPaint.isLinearText() && fPaint.getPathEffect() == NULL) {
         fPaint.setTextSize(SkIntToScalar(SkPaint::kCanonicalTextSizeForPaths));
         fScale = paint.getTextSize() / SkPaint::kCanonicalTextSizeForPaths;
         if (has_thick_frame(fPaint)) {