Stop using DEFINE_STATIC_LOCAL in ResourceResponse.cpp.

third_party/WebKit/Source/platform/BUILD.gn

Index: third_party/WebKit/Source/platform/BUILD.gn
diff --git a/third_party/WebKit/Source/platform/BUILD.gn b/third_party/WebKit/Source/platform/BUILD.gn
index 41a435f88c1fe27b8541b6106490630017878659..0db36c89182dce1982d298d79c841f3913a4f8fe 100644
--- a/third_party/WebKit/Source/platform/BUILD.gn
+++ b/third_party/WebKit/Source/platform/BUILD.gn
@@ -1776,7 +1776,6 @@ test("blink_platform_unittests") {
     "network/LinkHeaderTest.cpp",
     "network/NetworkUtilsTest.cpp",
     "network/ResourceRequestTest.cpp",
-    "network/ResourceResponseTest.cpp",
     "network/mime/MIMETypeRegistryTest.cpp",
     "scheduler/base/intrusive_heap_unittest.cc",
     "scheduler/base/queueing_time_estimator_unittest.cc",
@@ -2089,6 +2088,7 @@ source_set("unit_tests") {
     "graphics/test/FakeGLES2Interface.h",
     "graphics/test/FakeWebGraphicsContext3DProvider.h",
     "graphics/test/MockImageDecoder.h",
+    "network/ResourceResponseTest.cpp",
   ]
 
   configs += [