Enable icu_use_data_file on Windows

base/base.gyp

Index: base/base.gyp
diff --git a/base/base.gyp b/base/base.gyp
index 0c8207f84c32e7cec29a1ed4a34483c0ed2d9349..9e96492585a8211905d69a895a6c7bd081b5a20d 100644
--- a/base/base.gyp
+++ b/base/base.gyp
@@ -795,10 +795,14 @@
           },
         ],
         ['OS == "win"', {
-          # This is needed to trigger the dll copy step on windows.
-          # TODO(mark): This should not be necessary.
-          'dependencies': [
-            '../third_party/icu/icu.gyp:icudata',
+          'conditions': [
+            ['icu_use_data_file_flag==0', {
+              # This is needed to trigger the dll copy step on windows.
+              # TODO(mark): This should not be necessary.
+              'dependencies': [
+                '../third_party/icu/icu.gyp:icudata',
+              ],
+            }],
           ],
           'sources!': [
             'file_descriptor_shuffle_unittest.cc',