Convert //components/[o-t]* from scoped_ptr to std::unique_ptr

components/test_runner/test_runner.cc

Index: components/test_runner/test_runner.cc
diff --git a/components/test_runner/test_runner.cc b/components/test_runner/test_runner.cc
index 5fd5a1b34f95f0e07cab348a3aa7a4dd597fcd64..f97ed57d0d2e1aca28beb48b09d9b7ee7b35da8b 100644
--- a/components/test_runner/test_runner.cc
+++ b/components/test_runner/test_runner.cc
@@ -78,7 +78,7 @@ namespace {
 
 WebString V8StringToWebString(v8::Local<v8::String> v8_str) {
   int length = v8_str->Utf8Length() + 1;
-  scoped_ptr<char[]> chars(new char[length]);
+  std::unique_ptr<char[]> chars(new char[length]);
   v8_str->WriteUtf8(chars.get(), length);
   return WebString::fromUTF8(chars.get());
 }