UMA_HISTOGRAM_MBYTES 1397 webkit/browser/quota/quota_manager.cc   UMA_HISTOGRAM_MBYTES("Quota.GlobalUsageOfTemporaryStorage", usage);
UMA_HISTOGRAM_MBYTES 1421 webkit/browser/quota/quota_manager.cc   UMA_HISTOGRAM_MBYTES("Quota.GlobalUsageOfPersistentStorage", usage);
UMA_HISTOGRAM_MBYTES   88 webkit/browser/quota/quota_temporary_storage_evictor.cc   UMA_HISTOGRAM_MBYTES("Quota.UsageOverageOfTemporaryGlobalStorage",
UMA_HISTOGRAM_MBYTES   90 webkit/browser/quota/quota_temporary_storage_evictor.cc   UMA_HISTOGRAM_MBYTES("Quota.DiskspaceShortage",
UMA_HISTOGRAM_MBYTES   92 webkit/browser/quota/quota_temporary_storage_evictor.cc   UMA_HISTOGRAM_MBYTES("Quota.EvictedBytesPerRound",