Pull ICU, rename component build GN variables.

This ICU roll only renames component_mode -> is_component_build

Update other users of the component_mode string to is_component_build.

Rename the declaration to be local to BUILDCONFIG.gn (prefixed with '_').

Removes a bitrotted GN unit test around component handing (it wasn't
testing anything useful any more since we removed the built-in
component function).

Review URL: https://codereview.chromium.org/1275583002

Cr-Original-Commit-Position: refs/heads/master@{#342204}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 2a08763777c45ca4e7a00a846266bbfed31ef673
1 file changed
tree: 306c353b6272ebcab62b9b3e9fe72b6b15498af5
  1. patches/
  2. ssl/
  5. README.chromium
  6. ssl.gyp