symbol_level is set to 1 for x86 Linux

[AlexeyBarabash]

With default symbol_level=2 x86 brave binary reached 6.4 GiB, this is beyond ELF32 can handle and the next steps had failed.

[bridiver]

strange, do you know why we are hitting this and chrome isn't?

[AlexeyBarabash]

@bridiver if chrome runs with the same args.gn, it does hit this issue

$ ninja -C out_x86/Release chrome/installer/linux
ninja: Entering directory `out_x86/Release'
[1/45] ACTION //chrome/installer/linux:strip_chrome_binary(//build/toolchain/linux:clang_x86)
./../../third_party/eu-strip/bin/eu-strip: illformed file 'chrome'
[9/32] ACTION //chrome/installer/linux:stable_deb(//build/toolchain/linux:clang_x86)
FAILED: chromium-browser-stable_66.0.3345.0-1_i386.deb 
python ../../build/gn_run_binary.py installer/debian/build.sh -a ia32 -b . -c stable -d chromium -o . -s ../../build/linux/debian_stretch_i386-sysroot -t linux
Expected permissions on chrome to be 644, but they were 755
installer/debian/build.sh failed with exit code 1
[10/32] ACTION //chrome/installer/linux:unstable_deb(//build/toolchain/linux:clang_x86)
FAILED: chromium-browser-unstable_66.0.3345.0-1_i386.deb 
python ../../build/gn_run_binary.py installer/debian/build.sh -a ia32 -b . -c unstable -d chromium -o . -s ../../build/linux/debian_stretch_i386-sysroot -t linux
Expected permissions on chrome to be 644, but they were 755
installer/debian/build.sh failed with exit code 1
[11/32] ACTION //chrome/installer/linux:beta_deb(//build/toolchain/linux:clang_x86)
FAILED: chromium-browser-beta_66.0.3345.0-1_i386.deb 
python ../../build/gn_run_binary.py installer/debian/build.sh -a ia32 -b . -c beta -d chromium -o . -s ../../build/linux/debian_stretch_i386-sysroot -t linux
Expected permissions on chrome to be 644, but they were 755
installer/debian/build.sh failed with exit code 1
[12/32] ACTION //chrome/installer/linux:calculate_rpm_dependencies(//build/toolchain/linux:clang_x86)
ninja: build stopped: subcommand failed.

They do even have a parameter to ignore some assertions:

ignore_elf32_limitations
    Current value (from the default) = false
      From //build_overrides/build.gni:41

    Android 32-bit non-component, non-clang builds cannot have symbol_level=2
    due to 4GiB file size limit, see https://crbug.com/648948.
    Set this flag to true to skip the assertion.

and https://crbug.com/648948 mention with details

[bbondy]

@AlexeyBarabash could you rebase and then we can merge. Sorry for the delay.