Fix line wrapping causing text to overlap in the track header.
Fix line wrapping causing text to overlap in the track header.

BUG=#1115
R=nduca@google.com

Review URL: https://codereview.appspot.com/252650043 .

dstockwell/catapult,sahiljain/catapult,SummerLW/Perf-Insight-Report,catapult-project/catapult-csm,benschmaus/catapult,catapult-project/catapult-csm,SummerLW/Perf-Insight-Report,zeptonaut/catapult,danbeam/catapult,catapult-project/catapult,benschmaus/catapult,catapult-project/catapult-csm,dstockwell/catapult,benschmaus/catapult,0x90sled/catapult,catapult-project/catapult,benschmaus/catapult,sahiljain/catapult,catapult-project/catapult,SummerLW/Perf-Insight-Report,SummerLW/Perf-Insight-Report,benschmaus/catapult,scottmcmaster/catapult,modulexcite/catapult,scottmcmaster/catapult,0x90sled/catapult,catapult-project/catapult-csm,catapult-project/catapult-csm,modulexcite/catapult,catapult-project/catapult-csm,sahiljain/catapult,catapult-project/catapult,benschmaus/catapult,danbeam/catapult,zeptonaut/catapult,0x90sled/catapult,benschmaus/catapult,danbeam/catapult,sahiljain/catapult,danbeam/catapult,sahiljain/catapult,scottmcmaster/catapult,SummerLW/Perf-Insight-Report,catapult-project/catapult-csm,catapult-project/catapult,modulexcite/catapult,dstockwell/catapult,sahiljain/catapult,SummerLW/Perf-Insight-Report,catapult-project/catapult,dstockwell/catapult,catapult-project/catapult,zeptonaut/catapult