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

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

Index: third_party/WebKit/Source/platform/fonts/SmallCapsIteratorTest.cpp
diff --git a/third_party/WebKit/Source/platform/fonts/SmallCapsIteratorTest.cpp b/third_party/WebKit/Source/platform/fonts/SmallCapsIteratorTest.cpp
index 9245ba64ec571699d699ac446884eeebe9e46e17..4e18becdcbee5c8c98f21989c802def0ea90a121 100644
--- a/third_party/WebKit/Source/platform/fonts/SmallCapsIteratorTest.cpp
+++ b/third_party/WebKit/Source/platform/fonts/SmallCapsIteratorTest.cpp
@@ -26,7 +26,7 @@ struct ExpectedRun {
 class SmallCapsIteratorTest : 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()));
@@ -62,7 +62,7 @@ class SmallCapsIteratorTest : public testing::Test {
   CheckRuns(runs);
 
 TEST_F(SmallCapsIteratorTest, Empty) {
-  String empty(emptyString16Bit());
+  String empty(emptyString16Bit);
   SmallCapsIterator smallCapsIterator(empty.characters16(), empty.length());
   unsigned limit = 0;
   SmallCapsIterator::SmallCapsBehavior smallCapsBehavior =