Rename LocalizedNumberICU.h to ICULocale.h

Rename LocalizedNumberICU.h to ICULocale.h
https://bugs.webkit.org/show_bug.cgi?id=84119

Reviewed by Kentaro Hara.

Source/WebCore:

LocalizedNumberICU.h contains only ICULocale class. It should be
named as ICULocale.h. We're going to move some functions in
LocalizedDateICU.cpp and LocalizedCalendarICU.cpp to ICULocale,
and add unit tests for them.

* WebCore.gypi: Rename LocalizedNumberICU.h to ICULocale.h
* platform/text/ICULocale.h:
Renamed from Source/WebCore/platform/text/LocalizedNumberICU.h.
* platform/text/LocalizedNumberICU.cpp:
Rename LocalizedNumberICU.h to ICULocale.h

Source/WebKit/chromium:

* tests/LocalizedNumberICUTest.cpp: Rename LocalizedNumberICU.h to ICULocale.h

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@114347 268f45cc-cd09-0410-ab3c-d52691b4dbfc