switched skslc from std::string to SkString

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4977

Change-Id: I15e24963b09b719a2c07da67745114f5ac66cee8
Reviewed-on: https://skia-review.googlesource.com/4977
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/sksl/ir/SkSLFunctionCall.h b/src/sksl/ir/SkSLFunctionCall.h
index 5c67a2873c..971af366b9 100644
--- a/src/sksl/ir/SkSLFunctionCall.h
+++ b/src/sksl/ir/SkSLFunctionCall.h
@@ -23,9 +23,9 @@ struct FunctionCall : public Expression {
     , fFunction(std::move(function))
     , fArguments(std::move(arguments)) {}
 
-    std::string description() const override {
-        std::string result = fFunction.fName + "(";
-        std::string separator = "";
+    SkString description() const override {
+        SkString result = fFunction.fName + "(";
+        SkString separator;
         for (size_t i = 0; i < fArguments.size(); i++) {
             result += separator;
             result += fArguments[i]->description();