Avoid heap initialization for skia allocations.
Avoid heap initialization for skia allocations.

Android is turning on a flag which zero's all malloc calls for security
purposes. Since allocations with sk_malloc_flags are potentially very
large, and this flag is known to regress some HWUI usecases, disabling
this initialization for graphics buffers (which we know will get filled
anyway).

Bug: 131355925
Test: removes large hwuimacro regressions w/ heap initialiation
Change-Id: I7ae11b075f88d03c0a9709928ad7bbbc3b04f73f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/320266
Reviewed-by: Derek Sollenberger <d9b232705cad36bae5cfccf14f9650bb292e6c71@google.com>
Auto-Submit: Steven Moreland <4840f2e2fca2d2af23b5ddcdd6ec59bfb2c968b2@google.com>
Commit-Queue: Derek Sollenberger <d9b232705cad36bae5cfccf14f9650bb292e6c71@google.com>

aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia