platform/testing/{URL|Unit}TestHelpers improvements

third_party/WebKit/Source/web/tests/DocumentLoaderTest.cpp

Index: third_party/WebKit/Source/web/tests/DocumentLoaderTest.cpp
diff --git a/third_party/WebKit/Source/web/tests/DocumentLoaderTest.cpp b/third_party/WebKit/Source/web/tests/DocumentLoaderTest.cpp
index c50ec6cea096604f6a0d4ef25b91adcb0e5ea8ae..b4ff0916fa6d2b2c13adc12c32d371ae908f51ee 100644
--- a/third_party/WebKit/Source/web/tests/DocumentLoaderTest.cpp
+++ b/third_party/WebKit/Source/web/tests/DocumentLoaderTest.cpp
@@ -6,6 +6,7 @@
 
 #include "core/page/Page.h"
 #include "platform/testing/URLTestHelpers.h"
+#include "platform/testing/UnitTestHelpers.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebURLLoaderClient.h"
 #include "public/platform/WebURLLoaderMockFactory.h"
@@ -25,7 +26,8 @@ class DocumentLoaderTest : public ::testing::Test {
   void SetUp() override {
     m_webViewHelper.initialize();
     URLTestHelpers::registerMockedURLLoad(
-        URLTestHelpers::toKURL("https://example.com/foo.html"), "foo.html");
+        URLTestHelpers::toKURL("https://example.com/foo.html"),
+        testing::webTestDataPath("foo.html"));
   }
 
   void TearDown() override {