Update equalIgnoreCase to equalIgnoreASCIICase in Source/web

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

Index: third_party/WebKit/Source/web/tests/FrameSerializerTest.cpp
diff --git a/third_party/WebKit/Source/web/tests/FrameSerializerTest.cpp b/third_party/WebKit/Source/web/tests/FrameSerializerTest.cpp
index 7d23579c67c90fecc156183245a569f014d8a656..d717713b1ef35cacbf040406f0168047fda4f8d8 100644
--- a/third_party/WebKit/Source/web/tests/FrameSerializerTest.cpp
+++ b/third_party/WebKit/Source/web/tests/FrameSerializerTest.cpp
@@ -140,7 +140,7 @@ protected:
         for (size_t i = 0; i < m_resources.size(); ++i) {
             const SerializedResource& resource = m_resources[i];
             if (resource.url == url && !resource.data->isEmpty()
-                && (mime.isNull() || equalIgnoringCase(resource.mimeType, mime)))
+                && (mime.isNull() || equalIgnoringASCIICase(resource.mimeType, mime)))
                 return &resource;
         }
         return nullptr;