Switch chromium.perf Win64 builder to use ninja.
Switch chromium.perf Win64 builder to use ninja.

Release_x64 target is not supported by MSVS generator.

BUG=320933

Review URL: https://codereview.chromium.org/103033003

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@238794 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build