Roll DEPS for ICU to e3b480d3.

Routine Roll.
https://chromium.googlesource.com/chromium/deps/icu/+log/08cb9568..e3b480d3

TBR=dsinclair@chromium.org

Change-Id: I509f822f02cec0ac17bf2199a699e1198f274a7f
Reviewed-on: https://pdfium-review.googlesource.com/20670
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index 75d5d5b..dacc834 100644
--- a/DEPS
+++ b/DEPS
@@ -13,7 +13,7 @@
   'freetype_revision': 'bec14f688925467be708f01378fbbf82e6b19b42',
   'gmock_revision': '29763965ab52f24565299976b936d1265cb6a271',
   'gtest_revision': '8245545b6dc9c4703e6496d1efd19e975ad2b038',
-  'icu_revision': '08cb956852a5ccdba7f9c941728bb833529ba3c6',
+  'icu_revision': 'e3b480d3be4446ea17011c0cdc9c4cd380a5c58f',
   'instrumented_lib_revision': '644afd349826cb68204226a16c38bde13abe9c3c',
   'jinja2_revision': 'd34383206fa42d52faa10bb9931d6d538f3a57e0',
   'jpeg_turbo_revision': '7260e4d8b8e1e40b17f03fafdf1cd83296900f76',