Remove obsolete GN check.md documentation.
This information is covered in the built-in help under "gn help check" and "gn
help nogncheck".
R=estade@chromium.org
BUG=682331
Review-Url: https://codereview.chromium.org/2647443003
Cr-Original-Commit-Position: refs/heads/master@{#444492}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 6c0a0762e46562f77c65b65a4dca2c6c296ba4d8
diff --git a/tools/gn/README.md b/tools/gn/README.md
index 0a67774..ef61ca9 100644
--- a/tools/gn/README.md
+++ b/tools/gn/README.md
@@ -45,4 +45,3 @@
* [Hacking on GN itself](docs/hacking.md)
* [GNStandalone](docs/standalone.md) Standalone GN projects
* [UpdateGNBinaries](docs/update_binaries.md) Pushing new binaries
- * [Check](docs/check.md) `gn check` command reference
diff --git a/tools/gn/docs/check.md b/tools/gn/docs/check.md
deleted file mode 100644
index e99f6a4..0000000
--- a/tools/gn/docs/check.md
+++ /dev/null
@@ -1,112 +0,0 @@
-# GN Check
-
-GN has several different ways to check dependencies. Many of them are checked by
-the `gn check` command. Running checks involve opening and scanning all source
-files so this isn't run every time a build is updated. To run check on an
-existing build:
-
- gn check out/mybuild
-
-To run the check as part of the "gen" command to update the build (this is what
-the bots do):
-
- gn gen out/mybuild --check
-
-[TOC]
-
-## Concepts
-
-### Visibility
-
-Targets can control which other targets may depend on them by specifying
-`visibility`. Visibility is always checked when running any GN command (not just
-`gn check`.
-
-By default, targets are "public" meaning any target can depend on them. If you
-supply a list, visibility will be listed to those targets (possibly including
-wildcards):
-
-```
-visibility = [
- ":*", # All targets in this file.
- "//content/*", # All targets in content and any subdirectory thereof.
- "//tools:doom_melon", # This specific target.
-]
-```
-
-See `gn help visibility` for more details and examples.
-
-### Public header files
-
-Targets can control which headers may be included by dependent targets so as to
-define a public API. If your target specifies only `sources`, then all headers
-listed there are public and can be included by all dependents.
-
-If your target defines a `public` variable, only the files listed in that list
-will be public. Files in `sources` but not `public` (they can be in both or only
-one) may not be included by dependent targets.
-
-```
-source_set("foo") {
- public = [
- "foo.h",
- "foo_config.h",
- ]
- sources = [
- "foo.cc",
- "foo.h",
- "bar.cc",
- "bar.h",
- ]
-}
-```
-
-### Public dependencies
-
-In order to include files from your target, that target must be listed in your
-target's dependencies. By default, transitively depending on a target doesn't
-give your files this privilege.
-
-If a target exposes a dependency as part of its public API, then it can list
-that dependency as a `public_deps`:
-
-```
-source_set("foo") {
- sources = [ ... ]
- public_deps = [
- "//base",
- ]
- deps = [
- "//tools/doom_melon",
- ]
-}
-```
-
-Targets that depend on `foo` can include files from `base` but not from
-`doom_melon`. To include public headers from `doom\_melon, a target would need
-to depend directly on it.
-
-Public dependencies work transitively, so listing a target as a public
-dependency also exposes that target's public dependencies. Along with the
-ability to include headers, public dependencies forward the `public_configs`
-which allow settings like defines and include directories to apply to
-dependents.
-
-## Putting it all together
-
-In order to include a header from target Y in a file that is part of target X:
-
-* X must be in Y's `visibility` list (or B must have no `visibility` defined).
-* The header must be in Y's `public` headers (or Y must have no `public`
- variable defined).
-* X must depend directly on Y, or there must be a path from X to Y following
- only public dependencies.
-
-### What gets checked
-
-Chrome currently doesn't come close to passing a `gn check` pass. You can check
-specific targets or subtrees for issues:
-
- gn check out/mybuild //base
-
- gn check out/mybuild "//mojo/*"
