I think this is more-or-less fixed now ...

This is not yet integrated on iOS and this is required for official build, so reopening just for iOS.

Moving this nonessential bug to the next milestone.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/6e714433f6749c3664ca816d1c64a488828ef75d

commit 6e714433f6749c3664ca816d1c64a488828ef75d
Author: sdefresne <sdefresne@chromium.org>
Date: Tue Jul 19 12:41:58 2016

[iOS/GN] Fix generation of .dSYM for fat binary builds.

When creating fat binaries, the generation of the .dSYM file need to
use the fat binary and not the intermediate binaries. So for a fat
build, //build/config/mac:strip_all is an empty configuration and the
linker tools do not pass the flag requesting generation of the .dSYM
file to linker_driver.py, instead the flags are passed when "lipo" is
invoked.

Fix //build/toolchain/mac/linker_driver.py to look for both "-o" and
"-output" when looking for the linker output to allow wrapping "lipo"
in addition to the compiler linker (as "lipo" only accept "-output"
flag to specify the output file).

Always add //build/config/mac:strip_all to the dependencies of all
linkable targets on iOS (as is done on Mac) and fix cronet.

BUG= 593582 

Review-Url: https://codereview.chromium.org/2160653002
Cr-Commit-Position: refs/heads/master@{#406253}

[modify] https://crrev.com/6e714433f6749c3664ca816d1c64a488828ef75d/build/config/BUILDCONFIG.gn
[modify] https://crrev.com/6e714433f6749c3664ca816d1c64a488828ef75d/build/config/ios/rules.gni
[modify] https://crrev.com/6e714433f6749c3664ca816d1c64a488828ef75d/build/config/mac/BUILD.gn
[modify] https://crrev.com/6e714433f6749c3664ca816d1c64a488828ef75d/build/config/mac/base_rules.gni
[modify] https://crrev.com/6e714433f6749c3664ca816d1c64a488828ef75d/build/toolchain/mac/BUILD.gn
[modify] https://crrev.com/6e714433f6749c3664ca816d1c64a488828ef75d/build/toolchain/mac/linker_driver.py
[modify] https://crrev.com/6e714433f6749c3664ca816d1c64a488828ef75d/components/cronet/ios/BUILD.gn