Add missing shift instrucions for panning with keys
Add missing shift instrucions for panning with keys

TBR=dsinclair@chromium.org
BUG=

Review URL: https://codereview.appspot.com/13101043
0x90sled/catapult,vmpstr/trace-viewer,catapult-project/catapult,sahiljain/catapult,benschmaus/catapult,danbeam/catapult,catapult-project/catapult,dstockwell/catapult,modulexcite/catapult,catapult-project/catapult-csm,catapult-project/catapult,scottmcmaster/catapult,zeptonaut/catapult,catapult-project/catapult,benschmaus/catapult,catapult-project/catapult-csm,dstockwell/catapult,modulexcite/catapult,SummerLW/Perf-Insight-Report,sahiljain/catapult,danbeam/catapult,catapult-project/catapult-csm,dstockwell/catapult,vmpstr/trace-viewer,zeptonaut/catapult,vmpstr/trace-viewer,catapult-project/catapult,SummerLW/Perf-Insight-Report,benschmaus/catapult,benschmaus/catapult,modulexcite/catapult,benschmaus/catapult,dstockwell/catapult,danbeam/catapult,catapult-project/catapult,sahiljain/catapult,zeptonaut/catapult,benschmaus/catapult,0x90sled/catapult,SummerLW/Perf-Insight-Report,catapult-project/catapult,SummerLW/Perf-Insight-Report,SummerLW/Perf-Insight-Report,catapult-project/catapult-csm,danbeam/catapult,scottmcmaster/catapult,catapult-project/catapult-csm,sahiljain/catapult,sahiljain/catapult,SummerLW/Perf-Insight-Report,sahiljain/catapult,benschmaus/catapult,scottmcmaster/catapult,catapult-project/catapult-csm,0x90sled/catapult,catapult-project/catapult-csm