Use a more suitable storage for the timezone table.
Use a more suitable storage for the timezone table.

Creating a runtime table of std::string objects, just to copy those
into a map, is not optimal from a runtime or footprint point of view.

Making the table use raw char pointers shrinks the code and data by 75%,
from 36 KB to 10 KB (clang, Linux, 64 bit content_shell).

clang:
Total change: -27266 bytes
==========================
  2 added, totalling +8448 bytes across 1 sources
  774 removed, totalling -36401 bytes across 2 sources
  1 grown, for a net change of +687 bytes (481 bytes before, 1168 bytes after) across 1 sources

R=estade@chromium.org,mark@chromium.org
BUG=

Review URL: https://codereview.chromium.org/573623003

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#297821}

M4sse/chromium.src,Pluto-tv/chromium-crosswalk,dushu1203/chromium.src,jaruba/chromium.src,axinging/chromium-crosswalk,dushu1203/chromium.src,markYoungH/chromium.src,Fireblend/chromium-crosswalk,axinging/chromium-crosswalk,Just-D/chromium-1,krieger-od/nwjs_chromium.src,fujunwei/chromium-crosswalk,markYoungH/chromium.src,hgl888/chromium-crosswalk,chuan9/chromium-crosswalk,markYoungH/chromium.src,Jonekee/chromium.src,TheTypoMaster/chromium-crosswalk,dednal/chromium.src,ltilve/chromium,PeterWangIntel/chromium-crosswalk,ltilve/chromium,chuan9/chromium-crosswalk,M4sse/chromium.src,krieger-od/nwjs_chromium.src,Fireblend/chromium-crosswalk,krieger-od/nwjs_chromium.src,Chilledheart/chromium,chuan9/chromium-crosswalk,TheTypoMaster/chromium-crosswalk,Just-D/chromium-1,hgl888/chromium-crosswalk,M4sse/chromium.src,TheTypoMaster/chromium-crosswalk,Just-D/chromium-1,dushu1203/chromium.src,hgl888/chromium-crosswalk,Pluto-tv/chromium-crosswalk,jaruba/chromium.src,Jonekee/chromium.src,jaruba/chromium.src,ltilve/chromium,fujunwei/chromium-crosswalk,dushu1203/chromium.src,mohamed--abdel-maksoud/chromium.src,TheTypoMaster/chromium-crosswalk,Pluto-tv/chromium-crosswalk,dednal/chromium.src,M4sse/chromium.src,mohamed--abdel-maksoud/chromium.src,Pluto-tv/chromium-crosswalk,hgl888/chromium-crosswalk,dushu1203/chromium.src,Fireblend/chromium-crosswalk,hgl888/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,Pluto-tv/chromium-crosswalk,Jonekee/chromium.src,Chilledheart/chromium,TheTypoMaster/chromium-crosswalk,fujunwei/chromium-crosswalk,Fireblend/chromium-crosswalk,Jonekee/chromium.src,mohamed--abdel-maksoud/chromium.src,hgl888/chromium-crosswalk,Jonekee/chromium.src,TheTypoMaster/chromium-crosswalk,Fireblend/chromium-crosswalk,TheTypoMaster/chromium-crosswalk,Pluto-tv/chromium-crosswalk,markYoungH/chromium.src,Jonekee/chromium.src,dednal/chromium.src,jaruba/chromium.src,hgl888/chromium-crosswalk,Chilledheart/chromium,mohamed--abdel-maksoud/chromium.src,Just-D/chromium-1,Chilledheart/chromium,Just-D/chromium-1,dednal/chromium.src,dushu1203/chromium.src,axinging/chromium-crosswalk,dednal/chromium.src,markYoungH/chromium.src,hgl888/chromium-crosswalk,jaruba/chromium.src,axinging/chromium-crosswalk,chuan9/chromium-crosswalk,M4sse/chromium.src,dednal/chromium.src,dushu1203/chromium.src,ltilve/chromium,mohamed--abdel-maksoud/chromium.src,M4sse/chromium.src,dednal/chromium.src,Chilledheart/chromium,markYoungH/chromium.src,dednal/chromium.src,Chilledheart/chromium,PeterWangIntel/chromium-crosswalk,axinging/chromium-crosswalk,dushu1203/chromium.src,M4sse/chromium.src,PeterWangIntel/chromium-crosswalk,M4sse/chromium.src,krieger-od/nwjs_chromium.src,chuan9/chromium-crosswalk,Fireblend/chromium-crosswalk,ltilve/chromium,markYoungH/chromium.src,jaruba/chromium.src,PeterWangIntel/chromium-crosswalk,ltilve/chromium,Fireblend/chromium-crosswalk,chuan9/chromium-crosswalk,axinging/chromium-crosswalk,Fireblend/chromium-crosswalk,chuan9/chromium-crosswalk,Pluto-tv/chromium-crosswalk,M4sse/chromium.src,Jonekee/chromium.src,krieger-od/nwjs_chromium.src,PeterWangIntel/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,fujunwei/chromium-crosswalk,fujunwei/chromium-crosswalk,TheTypoMaster/chromium-crosswalk,jaruba/chromium.src,krieger-od/nwjs_chromium.src,Chilledheart/chromium,Jonekee/chromium.src,jaruba/chromium.src,krieger-od/nwjs_chromium.src,Just-D/chromium-1,chuan9/chromium-crosswalk,krieger-od/nwjs_chromium.src,axinging/chromium-crosswalk,jaruba/chromium.src,jaruba/chromium.src,fujunwei/chromium-crosswalk,krieger-od/nwjs_chromium.src,mohamed--abdel-maksoud/chromium.src,Just-D/chromium-1,ltilve/chromium,Pluto-tv/chromium-crosswalk,markYoungH/chromium.src,axinging/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,ltilve/chromium,Pluto-tv/chromium-crosswalk,dednal/chromium.src,chuan9/chromium-crosswalk,Jonekee/chromium.src,dushu1203/chromium.src,markYoungH/chromium.src,Jonekee/chromium.src,fujunwei/chromium-crosswalk,Just-D/chromium-1,PeterWangIntel/chromium-crosswalk,krieger-od/nwjs_chromium.src,Chilledheart/chromium,fujunwei/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,markYoungH/chromium.src,mohamed--abdel-maksoud/chromium.src,markYoungH/chromium.src,dushu1203/chromium.src,fujunwei/chromium-crosswalk,ltilve/chromium,hgl888/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,dednal/chromium.src,axinging/chromium-crosswalk,krieger-od/nwjs_chromium.src,M4sse/chromium.src,dushu1203/chromium.src,M4sse/chromium.src,axinging/chromium-crosswalk,Jonekee/chromium.src,dednal/chromium.src,axinging/chromium-crosswalk,Just-D/chromium-1,Fireblend/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,jaruba/chromium.src,TheTypoMaster/chromium-crosswalk,Chilledheart/chromium