SkPDF: alloc less memory for strings

tests/PDFPrimitivesTest.cpp

 /*
  * Copyright 2010 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "Resources.h"
 #include "SkBitmap.h"
 #include "SkCanvas.h"
@@ skipping 199 matching lines @@
     ASSERT_EMIT_EQ(reporter, biggerScalar, "50000000");
 
     SkPDFUnion smallestScalar = SkPDFUnion::Scalar(1.0f / 65536);
     ASSERT_EMIT_EQ(reporter, smallestScalar, ".0000152587890");
 
     SkPDFUnion stringSimple = SkPDFUnion::String("test ) string ( foo");
     ASSERT_EMIT_EQ(reporter, stringSimple, "(test \\) string \\( foo)");
 
     SkString stringComplexInput("\ttest ) string ( foo");
     SkPDFUnion stringComplex = SkPDFUnion::String(stringComplexInput);
-    ASSERT_EMIT_EQ(reporter,
-                   stringComplex,
-                   "<0974657374202920737472696E67202820666F6F>");
+    ASSERT_EMIT_EQ(reporter, stringComplex, "(\\011test \\) string \\( foo)");
+
+    SkString binaryStringInput("\1\2\3\4\5\6\7\10\11\12\13\14\15\16\17\20");
+    SkPDFUnion binaryString = SkPDFUnion::String(binaryStringInput);
+    ASSERT_EMIT_EQ(reporter, binaryString, "<0102030405060708090A0B0C0D0E0F10>");
 
     SkString nameInput("Test name\twith#tab");
     SkPDFUnion name = SkPDFUnion::Name(nameInput);
     ASSERT_EMIT_EQ(reporter, name, "/Test#20name#09with#23tab");
 
     SkString nameInput2("A#/%()<>[]{}B");
     SkPDFUnion name2 = SkPDFUnion::Name(nameInput2);
     ASSERT_EMIT_EQ(reporter, name2, "/A#23#2F#25#28#29#3C#3E#5B#5D#7B#7DB");
 
     SkPDFUnion name3 = SkPDFUnion::Name("SimpleNameWithOnlyPrintableASCII");
@@ skipping 249 matching lines @@
     float alwaysCheck[] = {
         0.0f, -0.0f, 1.0f, -1.0f, SK_ScalarPI, 0.1f, FLT_MIN, FLT_MAX,
         -FLT_MIN, -FLT_MAX, FLT_MIN / 16.0f, -FLT_MIN / 16.0f,
         SK_FloatNaN, SK_FloatInfinity, SK_FloatNegativeInfinity,
         -FLT_MIN / 8388608.0
     };
     for (float inputFloat: alwaysCheck) {
         check_pdf_scalar_serialization(reporter, inputFloat);
     }
 }