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, 2 insertions, 2 deletions

diff --git a/bench/ShaderMaskBench.cpp b/bench/ShaderMaskBench.cpp
index 90a5037f05..8fd99b6536 100644
--- a/bench/ShaderMaskBench.cpp
+++ b/bench/ShaderMaskBench.cpp
@@ -71,14 +71,14 @@ protected:
         for (int i = 0; i < loops; i++) {
             SkScalar x = x0 + rand.nextUScalar1() * dim.fX;
             SkScalar y = y0 + rand.nextUScalar1() * dim.fY;
-            canvas->drawText(fText.c_str(), fText.size(), x, y, paint);
+            canvas->drawString(fText, x, y, paint);
         }
 
         paint.setTextSize(SkIntToScalar(48));
         for (int i = 0; i < loops / 4 ; i++) {
             SkScalar x = x0 + rand.nextUScalar1() * dim.fX;
             SkScalar y = y0 + rand.nextUScalar1() * dim.fY;
-            canvas->drawText(fText.c_str(), fText.size(), x, y, paint);
+            canvas->drawString(fText, x, y, paint);
         }
     }