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

third_party/WebKit/Source/platform/fonts/shaping/RunSegmenterTest.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/shaping/RunSegmenter.h"
 
 #include "platform/fonts/OrientationIterator.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "wtf/Assertions.h"
 #include "wtf/Vector.h"
@@ skipping 26 matching lines @@
         limit(theLimit),
         script(theScript),
         renderOrientation(theRenderOrientation),
         fontFallbackPriority(theFontFallbackPriority) {}
 };
 
 class RunSegmenterTest : public testing::Test {
  protected:
   void CheckRuns(const Vector<SegmenterTestRun>& runs,
                  FontOrientation orientation) {
-    String text(emptyString16Bit());
+    String text(emptyString16Bit);
     Vector<SegmenterExpectedRun> expect;
     for (auto& run : runs) {
       unsigned lengthBefore = text.length();
       text.append(String::fromUTF8(run.text.c_str()));
       expect.push_back(SegmenterExpectedRun(lengthBefore, text.length(),
                                             run.script, run.renderOrientation,
                                             run.fontFallbackPriority));
     }
     RunSegmenter runSegmenter(text.characters16(), text.length(), orientation);
     VerifyRuns(&runSegmenter, expect);
@@ skipping 26 matching lines @@
 
 #define CHECK_RUNS_MIXED(...)      \
   DECLARE_RUNSVECTOR(__VA_ARGS__); \
   CheckRuns(runs, FontOrientation::VerticalMixed);
 
 #define CHECK_RUNS_HORIZONTAL(...) \
   DECLARE_RUNSVECTOR(__VA_ARGS__); \
   CheckRuns(runs, FontOrientation::Horizontal);
 
 TEST_F(RunSegmenterTest, Empty) {
-  String empty(emptyString16Bit());
+  String empty(emptyString16Bit);
   RunSegmenter::RunSegmenterRange segmenterRange = {
       0, 0, USCRIPT_INVALID_CODE, OrientationIterator::OrientationKeep};
   RunSegmenter runSegmenter(empty.characters16(), empty.length(),
                             FontOrientation::VerticalMixed);
   ASSERT(!runSegmenter.consume(&segmenterRange));
   ASSERT_EQ(segmenterRange.start, 0u);
   ASSERT_EQ(segmenterRange.end, 0u);
   ASSERT_EQ(segmenterRange.script, USCRIPT_INVALID_CODE);
   ASSERT_EQ(segmenterRange.renderOrientation,
             OrientationIterator::OrientationKeep);
@@ skipping 126 matching lines @@
   CHECK_RUNS_HORIZONTAL(
       {{"աբգ", USCRIPT_ARMENIAN, OrientationIterator::OrientationKeep,
         FontFallbackPriority::Text},
        {"αβγ", USCRIPT_GREEK, OrientationIterator::OrientationKeep,
         FontFallbackPriority::Text},
        {"ԱԲԳ", USCRIPT_ARMENIAN, OrientationIterator::OrientationKeep,
         FontFallbackPriority::Text}});
 }
 
 }  // namespace blink