Roll ICU to 741688eb

It has only one change in the roll to have a separate ICU data file for Chromecast.

 https://chromium.googlesource.com/chromium/deps/icu/+/741688eb

BUG= internal b/28053340
TEST=NONE

Change-Id: If1922172c4aa69c885cc1da55d52755716666e0f
Reviewed-on: https://chromium-review.googlesource.com/780324
Reviewed-by: Jungshik Shin <[email protected]>
Commit-Queue: Mina Almasry <[email protected]>
Cr-Commit-Position: refs/heads/master@{#519387}
diff --git a/DEPS b/DEPS
index 5ac0414..217d724 100644
--- a/DEPS
+++ b/DEPS
@@ -389,7 +389,7 @@
     Var('chromium_git') + '/chromium/deps/hunspell_dictionaries.git' + '@' + 'a9bac57ce6c9d390a52ebaad3259f5fdb871210e',
 
   'src/third_party/icu':
-    Var('chromium_git') + '/chromium/deps/icu.git' + '@' + '5ed26985c0171755d7542e7ad6bce12cde4dccfb',
+    Var('chromium_git') + '/chromium/deps/icu.git' + '@' + '741688ebf328da9adc52505248bf4e2ef868722c',
 
   'src/third_party/jsoncpp/source':
     Var('chromium_git') + '/external/github.com/open-source-parsers/jsoncpp.git' + '@' + 'f572e8e42e22cfcf5ab0aea26574f408943edfa4', # from svn 248