add drawString helper to canvas

Many tests and examples use drawText with
a guess of how long the text is in bytes,
or a call to strlen(). Add a helper to
SkCanvas to simplify these examples.

Add another helper for SkString.

R=reed@google.com

Change-Id: I0204a31e938f065606f08ee7cd9a6b36db791ee2
Reviewed-on: https://skia-review.googlesource.com/13642
Commit-Queue: Cary Clark <caryclark@google.com>
Reviewed-by: Cary Clark <caryclark@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Cary Clark <caryclark@skia.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/gm/variedtext.cpp b/gm/variedtext.cpp
index 563d138fc7..c0f6cbf8c7 100644
--- a/gm/variedtext.cpp
+++ b/gm/variedtext.cpp
@@ -116,7 +116,7 @@ protected:
             canvas->save();
                 canvas->clipRect(fClipRects[i]);
                 canvas->translate(fPositions[i].fX, fPositions[i].fY);
-                canvas->drawText(fStrings[i].c_str(), fStrings[i].size(), 0, 0, fPaint);
+                canvas->drawString(fStrings[i], 0, 0, fPaint);
             canvas->restore();
         }