In highdpi, we would constantly resize the canvas because of confusion about layout size vs device size.
In highdpi, we would constantly resize the canvas because of confusion about layout size vs device size.

git-svn-id: 3a56fcae908c7e16d23cb53443ea4795ac387cf2@523 0e6d7f2b-9903-5b78-7403-59d27f066143

bpsinc-native/src_third_party_trace-viewer,bpsinc-native/src_third_party_trace-viewer,bpsinc-native/src_third_party_trace-viewer,bpsinc-native/src_third_party_trace-viewer