Roll src/third_party/icu from ff8353094b0b to 89831135d5f7

Summary of changes available at:
https://chromium.googlesource.com/chromium/deps/icu52/+log/ff8353094b0b..89831135d5f7

BUG=409851
TBR=jshin@chromium.org

Review URL: https://codereview.chromium.org/539463002

Cr-Commit-Position: refs/heads/master@{#293126}

DEPS

@@ -124,7 +124,7 @@ deps = {
    Var('chromium_git') + '/external/w3c/csswg-test.git' + '@' + '0b12ea22689ee2179f3e9bff389db22f4efd6ed5',
 
   'src/third_party/icu':
-   Var('chromium_git') + '/chromium/deps/icu52.git' + '@' + 'ff8353094b0b29f2d50059c452d15bbf0a84c0ad', # from svn revision 291774
+   Var('chromium_git') + '/chromium/deps/icu52.git' + '@' + '89831135d5f76413fcdd3852f8de7f344b3fa40c', # from svn revision 291781
 
   'src/third_party/libexif/sources':
    Var('chromium_git') + '/chromium/deps/libexif/sources.git' + '@' + 'ed98343daabd7b4497f97fda972e132e6877c48a',