Add SkCanvas::drawPosTextBounded.

src/core/SkBBoxRecord.cpp

Index: src/core/SkBBoxRecord.cpp
diff --git a/src/core/SkBBoxRecord.cpp b/src/core/SkBBoxRecord.cpp
index 52d599f57ea1d89f28f27e0813093f542fe59086..666e440958f6e8fc2f5b72e8122f45b91bf03175 100644
--- a/src/core/SkBBoxRecord.cpp
+++ b/src/core/SkBBoxRecord.cpp
@@ -176,6 +176,14 @@ void SkBBoxRecord::drawPosText(const void* text, size_t byteLength,
     }
 }
 
+void SkBBoxRecord::drawPosTextBounded(const void* text, size_t byteLength,
+                                      const SkPoint pos[], const SkRect& bbox,
+                                      const SkPaint& paint) {

[tomhudson, 2013/08/07 15:48:39]

Is it worth putting in an SkASSERT here that the bbox passed in matches the bbox
that would be computed by drawPosText?

+    if (this->transformBounds(bbox, &paint)) {
+        INHERITED::drawPosText(text, byteLength, pos, paint);
+    }
+}
+
 void SkBBoxRecord::drawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
                                 SkScalar constY, const SkPaint& paint) {
     SkRect bbox;