## sandbox perms

30 55
sudo chown root chrome-sandbox &&
sudo chmod 4755 chrome-sandbox &&
sudo chmod 4755 chrome_sandbox &&
sudo chmod 4755 chrome_sandbox

---------------------------------------------------------------------------------------------

## Misc
Native Theme
base::CommandLine::ForCurrentProcess()->HasSwitch("force-dark-mode");

Media Switches
base::CommandLine::ForCurrentProcess()->HasSwitch("no-autoplay");

kShowHomeButton and kDoNotTrack

CssSelectorFragmentAnchor
Prefetchpri
// Check if the CPU has the required instruction set to run the Speech

kEnableTabMuting & PlatformHEVCDecoderSupport & kVaapiVideoDecode & kVaapiVideoEncode & Vp9kSVCHWDecoding & kD3D11Vp9kSVCHWDecoding & DeprecateLowUsageCodecs & kUseChromeOSDirectVideoDecoder

---------------------------------------------------------------------------------------------

## Disable AVX-512

        "-mno-avx512f",
        "-mno-avx512pf",
        "-mno-avx512er",
        "-mno-avx512cd",
        "-mno-avx512vl",
        "-mno-avx512bw",
        "-mno-avx512dq",
        "-mno-avx512ifma",
        "-mno-avx512vbmi",
        "-mno-avx512vbmi2",
        "-mno-avx512bf16",
        "-mno-avx512fp16",
        "-mno-avx512bitalg",
        "-mno-avx512vpopcntdq",
        "-mno-avx512vp2intersect",
        "-mno-avx512vnni",

## Old RobRich999 notes

  common_optimize_on_cflags = [
    "-mllvm", "-extra-vectorizer-passes",
    "-mllvm", "-enable-cond-stores-vec",
    "-mllvm", "-slp-vectorize-hor-store",
    "-mllvm", "-enable-loopinterchange",
    "-mllvm", "-enable-loop-distribute",
    "-mllvm", "-enable-unroll-and-jam",
    "-mllvm", "-enable-loop-flatten",
    "-mllvm", "-interleave-small-loop-scalar-reduction",
    "-mllvm", "-unroll-runtime-multi-exit",
    "-mllvm", "-aggressive-ext-opt",
    "-mllvm", "-polly",
    "-mllvm", "-polly-detect-profitability-min-per-loop-insts=40",
    "-mllvm", "-polly-invariant-load-hoisting",
    "-mllvm", "-polly-position=early",
    "-mllvm", "-polly-vectorizer=stripmine",
    "-mllvm", "-polly-run-inliner",
    "-mllvm", "-polly-enable-delicm=true",
    "-Xclang", "-Rpass-analysis=polly",
  ]

  common_optimize_on_ldflags = [
    "-Wl,-mllvm,-extra-vectorizer-passes",
    "-Wl,-mllvm,-enable-cond-stores-vec",
    "-Wl,-mllvm,-slp-vectorize-hor-store",
    "-Wl,-mllvm,-enable-loopinterchange",
    "-Wl,-mllvm,-enable-loop-distribute",
    "-Wl,-mllvm,-enable-unroll-and-jam",
    "-Wl,-mllvm,-enable-loop-flatten",
    "-Wl,-mllvm,-interleave-small-loop-scalar-reduction",
    "-Wl,-mllvm,-unroll-runtime-multi-exit",
    "-Wl,-mllvm,-aggressive-ext-opt",
  ]
  
  common_optimize_on_cflags = [
    "-mllvm", "-extra-vectorizer-passes",
    "-mllvm", "-enable-cond-stores-vec",
    "-mllvm", "-slp-vectorize-hor-store",
    "-mllvm", "-enable-loopinterchange",
    "-mllvm", "-enable-loop-distribute",
    "-mllvm", "-enable-unroll-and-jam",
    "-mllvm", "-enable-loop-flatten",
    "-mllvm", "-interleave-small-loop-scalar-reduction",
    "-mllvm", "-unroll-runtime-multi-exit",
    "-mllvm", "-aggressive-ext-opt",
    "-mllvm", "-polly",
    "-mllvm", "-polly-detect-profitability-min-per-loop-insts=40",
    "-mllvm", "-polly-invariant-load-hoisting",
    "-mllvm", "-polly-position=early",
    "-mllvm", "-polly-vectorizer=stripmine",
    "-mllvm", "-polly-run-inliner",
    "-mllvm", "-polly-enable-delicm=true",
    "-Xclang", "-Rpass-analysis=polly",
  ]

  common_optimize_on_ldflags = [
    "-mllvm:-extra-vectorizer-passes",
    "-mllvm:-enable-cond-stores-vec",
    "-mllvm:-slp-vectorize-hor-store",
    "-mllvm:-enable-loopinterchange",
    "-mllvm:-enable-loop-distribute",
    "-mllvm:-enable-unroll-and-jam",
    "-mllvm:-enable-loop-flatten",
    "-mllvm:-interleave-small-loop-scalar-reduction",
    "-mllvm:-unroll-runtime-multi-exit",
    "-mllvm:-aggressive-ext-opt",
  ]