Replace WTF::emptyString{16Bit}() with a static global

third_party/WebKit/Source/platform/fonts/SymbolsIteratorTest.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "platform/fonts/SymbolsIterator.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include <string>
 
 namespace blink {
 
 struct TestRun {
   std::string text;
   FontFallbackPriority fontFallbackPriority;
 };
 
 struct ExpectedRun {
   unsigned limit;
   FontFallbackPriority fontFallbackPriority;
 
   ExpectedRun(unsigned theLimit, FontFallbackPriority theFontFallbackPriority)
       : limit(theLimit), fontFallbackPriority(theFontFallbackPriority) {}
 };
 
 class SymbolsIteratorTest : public testing::Test {
  protected:
   void CheckRuns(const Vector<TestRun>& runs) {
-    String text(emptyString16Bit());
+    String text(emptyString16Bit);
     Vector<ExpectedRun> expect;
     for (auto& run : runs) {
       text.append(String::fromUTF8(run.text.c_str()));
       expect.push_back(ExpectedRun(text.length(), run.fontFallbackPriority));
     }
     SymbolsIterator symbolsIterator(text.characters16(), text.length());
     VerifyRuns(&symbolsIterator, expect);
   }
 
   void VerifyRuns(SymbolsIterator* symbolsIterator,
@@ skipping 15 matching lines @@
 #define DECLARE_RUNSVECTOR(...)                   \
   static const TestRun runsArray[] = __VA_ARGS__; \
   Vector<TestRun> runs;                           \
   runs.append(runsArray, sizeof(runsArray) / sizeof(*runsArray));
 
 #define CHECK_RUNS(...)            \
   DECLARE_RUNSVECTOR(__VA_ARGS__); \
   CheckRuns(runs);
 
 TEST_F(SymbolsIteratorTest, Empty) {
-  String empty(emptyString16Bit());
+  String empty(emptyString16Bit);
   SymbolsIterator symbolsIterator(empty.characters16(), empty.length());
   unsigned limit = 0;
   FontFallbackPriority symbolsFont = FontFallbackPriority::Invalid;
   ASSERT(!symbolsIterator.consume(&limit, &symbolsFont));
   ASSERT_EQ(limit, 0u);
   ASSERT_EQ(symbolsFont, FontFallbackPriority::Invalid);
 }
 
 TEST_F(SymbolsIteratorTest, Space) {
   CHECK_RUNS({{" ", FontFallbackPriority::Text}});
@@ skipping 131 matching lines @@
 TEST_F(SymbolsIteratorTest, Arrows) {
   CHECK_RUNS({{"x→←x←↑↓→", FontFallbackPriority::Text}});
 }
 
 TEST_F(SymbolsIteratorTest, JudgePilot) {
   CHECK_RUNS({{"👨‍⚖️👩‍⚖️👨🏼‍⚖️👩🏼‍⚖️",
                FontFallbackPriority::EmojiEmoji}});
 }
 
 }  // namespace blink