Removed unprefixed user drag.
Removed unprefixed user drag.

TBR=nduca
BUG=350

Review URL: https://codereview.appspot.com/12094043
dstockwell/catapult,zeptonaut/catapult,scottmcmaster/catapult,danbeam/catapult,catapult-project/catapult-csm,scottmcmaster/catapult,zeptonaut/catapult,sahiljain/catapult,vmpstr/trace-viewer,catapult-project/catapult,benschmaus/catapult,benschmaus/catapult,0x90sled/catapult,sahiljain/catapult,SummerLW/Perf-Insight-Report,catapult-project/catapult-csm,SummerLW/Perf-Insight-Report,catapult-project/catapult-csm,catapult-project/catapult,zeptonaut/catapult,catapult-project/catapult-csm,danbeam/catapult,SummerLW/Perf-Insight-Report,modulexcite/catapult,catapult-project/catapult-csm,benschmaus/catapult,catapult-project/catapult,dstockwell/catapult,catapult-project/catapult,SummerLW/Perf-Insight-Report,SummerLW/Perf-Insight-Report,sahiljain/catapult,benschmaus/catapult,0x90sled/catapult,vmpstr/trace-viewer,dstockwell/catapult,modulexcite/catapult,modulexcite/catapult,dstockwell/catapult,benschmaus/catapult,benschmaus/catapult,catapult-project/catapult-csm,scottmcmaster/catapult,0x90sled/catapult,vmpstr/trace-viewer,sahiljain/catapult,SummerLW/Perf-Insight-Report,catapult-project/catapult,benschmaus/catapult,catapult-project/catapult,catapult-project/catapult-csm,catapult-project/catapult,danbeam/catapult,danbeam/catapult,sahiljain/catapult,sahiljain/catapult