Revert "switched skslc from std::string to SkString"

This reverts commit d8df21a1e08b5b3380261f4b90acfbdc538ef93c.

Reason for revert: Breaking Roll

Original change's description:
> 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>
> 

TBR=bsalomon@google.com,benjaminwagner@google.com,ethannicholas@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I84d5311beb9d5e607b7a4a3c138332f0c8f19648
Reviewed-on: https://skia-review.googlesource.com/5077
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/src/sksl/ir/SkSLBlock.h b/src/sksl/ir/SkSLBlock.h
index f975d160a0..a53d13d169 100644
--- a/src/sksl/ir/SkSLBlock.h
+++ b/src/sksl/ir/SkSLBlock.h
@@ -4,7 +4,7 @@
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
-
+ 
 #ifndef SKSL_BLOCK
 #define SKSL_BLOCK
 
@@ -23,14 +23,14 @@ struct Block : public Statement {
     , fStatements(std::move(statements))
     , fSymbols(std::move(symbols)) {}
 
-    SkString description() const override {
-        SkString result("{");
+    std::string description() const override {
+        std::string result = "{";
         for (size_t i = 0; i < fStatements.size(); i++) {
             result += "\n";
             result += fStatements[i]->description();
         }
         result += "\n}\n";
-        return result;
+        return result;        
     }
 
     const std::vector<std::unique_ptr<Statement>> fStatements;