platform/testing/{URL|Unit}TestHelpers improvements

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

Index: third_party/WebKit/Source/platform/fonts/FontTest.cpp
diff --git a/third_party/WebKit/Source/platform/fonts/FontTest.cpp b/third_party/WebKit/Source/platform/fonts/FontTest.cpp
index 78a19e4b8a0ecba1f9d4738cd33daf1dd1f6fe4f..0e60067064b1af5b046cdb55b6dccd1d29b58f6e 100644
--- a/third_party/WebKit/Source/platform/fonts/FontTest.cpp
+++ b/third_party/WebKit/Source/platform/fonts/FontTest.cpp
@@ -14,13 +14,9 @@ using blink::testing::createTestFont;
 
 namespace blink {
 
-static inline String fontPath(String relativePath) {
-  return testing::blinkRootDir() + "/Source/platform/testing/data/" +
-         relativePath;
-}
-
 TEST(FontTest, TextIntercepts) {
-  Font font = createTestFont("Ahem", fontPath("Ahem.woff"), 16);
+  Font font =
+      createTestFont("Ahem", testing::platformTestDataPath("Ahem.woff"), 16);
   // A sequence of LATIN CAPITAL LETTER E WITH ACUTE and LATIN SMALL LETTER P
   // characters. E ACUTES are squares above the baseline in Ahem, while p's
   // are rectangles below the baseline.