Fix GCC 4.3.4 Release build failure due to warning about potentially uninitialized variable. (It's actually guaranteed to be initialized, but the code made that hard for the compiler to infer.)
Fix GCC 4.3.4 Release build failure due to warning about potentially uninitialized variable. (It's actually guaranteed to be initialized, but the code made that hard for the compiler to infer.)

TEST=built on Linux with GCC 4.3.4
BUG=none

Review URL: http://codereview.chromium.org/3750019

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@62994 0039d316-1c4b-4281-b951-d872f2087c98

ropik/chromium,ropik/chromium,yitian134/chromium,adobe/chromium,gavinp/chromium,yitian134/chromium,Crystalnix/house-of-life-chromium,adobe/chromium,Crystalnix/house-of-life-chromium,ropik/chromium,gavinp/chromium,gavinp/chromium,Crystalnix/house-of-life-chromium,yitian134/chromium,adobe/chromium,yitian134/chromium,adobe/chromium,ropik/chromium,ropik/chromium,adobe/chromium,yitian134/chromium,adobe/chromium,ropik/chromium,gavinp/chromium,adobe/chromium,Crystalnix/house-of-life-chromium,adobe/chromium,gavinp/chromium,yitian134/chromium,yitian134/chromium,yitian134/chromium,ropik/chromium,gavinp/chromium,Crystalnix/house-of-life-chromium,Crystalnix/house-of-life-chromium,gavinp/chromium,adobe/chromium,Crystalnix/house-of-life-chromium,Crystalnix/house-of-life-chromium,ropik/chromium,yitian134/chromium,Crystalnix/house-of-life-chromium,gavinp/chromium,gavinp/chromium,Crystalnix/house-of-life-chromium,adobe/chromium,gavinp/chromium,ropik/chromium,Crystalnix/house-of-life-chromium,yitian134/chromium,adobe/chromium