Revert of Added webrtc/base/safe_conversions.h as a pseudonym (patchset #1 id:20001 of https://codereview.webrtc.org/1774933003/ )

Reason for revert:
Looks like the Chrome iOS build is broken because of these two changes.  So I'm going to have to revert.  Here's the error:

https://build.chromium.org/p/tryserver.chromium.mac/builders/ios_rel_device_ninja/builds/185624/steps/compile/logs/stdio

FAILED: rm -f arch/libsafe_numerics.arm64.a && ./gyp-mac-tool filter-libtool libtool  -static -o arch/libsafe_numerics.arm64.a
error: /Applications/Xcode7.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool: no files specified
Usage: /Applications/Xcode7.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool -static [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-sacLT] [-no_warning_for_no_symbols]
Usage: /Applications/Xcode7.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool -dynamic [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-o output] [-install_name name] [-compatibility_version #] [-current_version #] [-seg1addr 0x#] [-segs_read_only_addr 0x#] [-segs_read_write_addr 0x#] [-seg_addr_table <filename>] [-seg_addr_table_filename <file_system_path>] [-all_load] [-noall_load]
FAILED: rm -f arch/libsafe_numerics.armv7.a && ./gyp-mac-tool filter-libtool libtool  -static -o arch/libsafe_numerics.armv7.a
error: /Applications/Xcode7.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool: no files specified
Usage: /Applications/Xcode7.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool -static [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-sacLT] [-no_warning_for_no_symbols]
Usage: /Applications/Xcode7.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool -dynamic [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-o output] [-install_name name] [-compatibility_version #] [-current_version #] [-seg1addr 0x#] [-segs_read_only_addr 0x#] [-segs_read_write_addr 0x#] [-seg_addr_table <filename>] [-seg_addr_table_filename <file_system_path>] [-all_load] [-noall_load]
ninja: build stopped: subcommand failed.

Original issue's description:
> Added webrtc/base/safe_conversions.h as a pseudonym
> for webrtc/base/numerics/safe_conversions.h.
>
> This prevents downstream projects from breaking that have not yet been
> updated to use the new file path. As soon as they have this file should
> be removed.
>
> This is a follow-up to https://codereview.webrtc.org/1753293002/.
>
> TBR=hta@webrtc.org
> NOPRESUBMIT=True
> NOTRY=True
> BUG=webrtc:5548
>
> Committed: https://crrev.com/b8f78858619c676955e1098ecc24f2612e55c84f
> Cr-Commit-Position: refs/heads/master@{#11912}

TBR=hta@webrtc.org,hbos@webrtc.org
NOTRY=True
BUG=webrtc:5548

Review URL: https://codereview.webrtc.org/1787953002 .

Cr-Commit-Position: refs/heads/master@{#11964}
2 files changed
tree: c70706b207d26f4278a13fdfcb70d2a6261209ea
  1. build_overrides/
  2. chromium/
  3. data/
  4. infra/
  5. resources/
  6. talk/
  7. third_party/
  8. tools/
  9. webrtc/
  10. .clang-format
  11. .gitignore
  12. .gn
  13. all.gyp
  14. AUTHORS
  15. BUILD.gn
  16. check_root_dir.py
  17. codereview.settings
  18. COPYING
  19. DEPS
  20. LICENSE
  21. license_template.txt
  22. LICENSE_THIRD_PARTY
  23. OWNERS
  24. PATENTS
  25. PRESUBMIT.py
  26. pylintrc
  27. README.md
  28. setup_links.py
  29. sync_chromium.py
  30. WATCHLISTS
README.md

WebRTC is a free, open software project that provides browsers and mobile applications with Real-Time Communications (RTC) capabilities via simple APIs. The WebRTC components have been optimized to best serve this purpose.

Our mission: To enable rich, high-quality RTC applications to be developed for the browser, mobile platforms, and IoT devices, and allow them all to communicate via a common set of protocols.

The WebRTC initiative is a project supported by Google, Mozilla and Opera, amongst others. This page is maintained by the Google Chrome team.

Development

See http://www.webrtc.org/native-code/development for instructions on how to get started developing with the native code.

More info