Enable icu_use_data_file on Windows

net/net.gyp

Index: net/net.gyp
diff --git a/net/net.gyp b/net/net.gyp
index bb383a8ab11515a9587757f43231be6cb48bf482..bdd8977974fd16fb13a88f7abacd4162df371294 100644
--- a/net/net.gyp
+++ b/net/net.gyp
@@ -2191,14 +2191,21 @@
               'dns/dns_config_service_posix_unittest.cc',
               'http/http_auth_gssapi_posix_unittest.cc',
             ],
-            # This is needed to trigger the dll copy step on windows.
-            # TODO(mark): Specifying this here shouldn't be necessary.
             'dependencies': [
-              '../third_party/icu/icu.gyp:icudata',
               '../third_party/nss/nss.gyp:nspr',
               '../third_party/nss/nss.gyp:nss',
               'third_party/nss/ssl.gyp:libssl',
             ],
+            'conditions': [
+              [ 'icu_use_data_file_flag == 0', {
+                  # This is needed to trigger the dll copy step on windows.
+                  # TODO(mark): Specifying this here shouldn't be necessary.
+                  'dependencies': [
+                    '../third_party/icu/icu.gyp:icudata',
+                  ],
+                },
+              ],
+            ],
             # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
             'msvs_disabled_warnings': [4267, ],
           },
@@ -2297,9 +2304,9 @@
             ],
           },
         ],
-        # This is needed to trigger the dll copy step on windows.
-        # TODO(mark): Specifying this here shouldn't be necessary.
-        [ 'OS == "win"', {
+        [ 'OS == "win" and icu_use_data_file_flag == 0', {
+            # This is needed to trigger the dll copy step on windows.
+            # TODO(mark): Specifying this here shouldn't be necessary.
             'dependencies': [
               '../third_party/icu/icu.gyp:icudata',
             ],