Revert "Roll GN from e002e68a..f5f465b5"

This reverts commit 7ba203c1.

Reason for revert: reverting since the src-internal roll hasn't landed yet.

Original change's description:
> Roll GN from e002e68a..f5f465b5
>
> Generated by //tools/gn/roll_gn.py
>
> https://gn.googlesource.com/gn/+log/e002e68a..f5f465b5
>
>     f5f465b5 Fix runtime_deps for elided targets
>     3d165b90 Correct the `gn format --dump-tree=json ...` command to write to stdout instead of stderr.
>     ad0a7ada Remove support for set_sources_assignment_filter function
>     e1ac69b1 Add a command line to define/overwrite "root" in ".gn"
>     7b2a04d5 VS: Use most recently installed Windows 10 SDK.
>     132588e1 Revert "gn recipe: Link GN with rpmalloc to speed it up."
>     3281c669 Add "framework_dirs" and "frameworks" to syntax highlighting rules
>     4323e701 gn recipe: Link GN with rpmalloc to speed it up.
>     c808630c Move runtime_deps file for phony targets to /obj
>     8855c522 Update Clang and Xcode SDK to 12B5025f
>     76f9b6ad Use fetch instead of cherry-pick for Gerrit changes
>     a3d69e87 Don't return if package is up-to-date
>     36ff17cb Switch back to the older Clang version
>     7bcc0eb3 Revert "Update Xcode SDK to 12B5025f"
>     e5f1f587 Update Xcode SDK to 12B5025f
>     6453c5de Support cross-compiling GN for other targets
>     42d6de6e Don't classify Rust static libraries as final
>     a9eaeb80 Switch remaining stamp targets to phony targets
>     ff45cf2a Show config.visibility in `gn desc`
>     de5a8348 [rust project] removing obsolete std libraries
>     4c684398 Fix "gn outputs" for bundle data.
>     99f72f88 Switch source_set stamp targets to phony targets
>     5233fa13 Remove extra * in gn output docs
>
> As of 99f72f88 and a9eaeb80, GN's usage of stamp files for intermediate
> steps in the build graph have been replaced with phony aliases. As a
> result, this CL also updates the MB tool to look for ".runtime_deps"
> files instead of ".stamp.runtime_deps".
>
> This is a reland of 7f3e4855
>
> Change-Id: I5bf18f1529b0969b8c79d768e9b3f377b8dee8cb
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2514460
> Reviewed-by: Dirk Pranke <dpranke@google.com>
> Commit-Queue: Dirk Pranke <dpranke@google.com>
> Cr-Commit-Position: refs/heads/master@{#823725}

TBR=dpranke@google.com,rjascani@google.com

Change-Id: Iebf4e78bd9e7550de3b025a997d4f792c3f80b1b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2518755Reviewed-by: Dirk Pranke <dpranke@google.com>
Commit-Queue: Dirk Pranke <dpranke@google.com>
Cr-Commit-Position: refs/heads/master@{#823727}

DEPS

@@ -379,7 +379,7 @@ vars = {
   # revisions.
 
   # GN CIPD package version.
-  'gn_version': 'git_revision:f5f465b52e5df6d4de9fbe67cc79f1914ba4dbfc',
+  'gn_version': 'git_revision:e002e68a48d1c82648eadde2f6aafa20d08c36f2',
 
   # Also, if you change these, update buildtools/DEPS too. Also update the
   # libc++ svn_revision in //buildtools/deps_revisions.gni.

buildtools/DEPS

@@ -14,7 +14,7 @@ vars = {
   #
 
   # GN CIPD package version.
-  'gn_version': 'git_revision:f5f465b52e5df6d4de9fbe67cc79f1914ba4dbfc',
+  'gn_version': 'git_revision:e002e68a48d1c82648eadde2f6aafa20d08c36f2',
 
   # When changing these, also update the svn revisions in deps_revisions.gni
   'clang_format_revision': '96636aa0e9f047f17447f2d45a094d0b59ed7917',

tools/mb/mb.py

@@ -1192,7 +1192,7 @@ class MetaBuildWrapper(object):
     for target in ninja_targets:
       target_type = isolate_map[target]['type']
       label = isolate_map[target]['label']
-      runtime_deps = 'obj/%s.runtime_deps' % label.replace(':', '/')
+      stamp_runtime_deps = 'obj/%s.stamp.runtime_deps' % label.replace(':', '/')
       # TODO(https://crbug.com/876065): 'official_tests' use
       # type='additional_compile_target' to isolate tests. This is not the
       # intended use for 'additional_compile_target'.
@@ -1205,21 +1205,23 @@ class MetaBuildWrapper(object):
       elif fuchsia or ios or target_type == 'generated_script':
         # iOS and Fuchsia targets end up as groups.
         # generated_script targets are always actions.
-        rpaths = [runtime_deps]
+        rpaths = [stamp_runtime_deps]
       elif android:
         # Android targets may be either android_apk or executable. The former
-        # will result in runtime_deps associated with the target, while the
+        # will result in runtime_deps associated with the stamp file, while the
         # latter will result in runtime_deps associated with the executable.
         label = isolate_map[target]['label']
-        rpaths = [target + '.runtime_deps', runtime_deps]
+        rpaths = [
+            target + '.runtime_deps',
+            stamp_runtime_deps]
       elif (target_type == 'script'
             or isolate_map[target].get('label_type') == 'group'):
         # For script targets, the build target is usually a group,
-        # for which gn generates the runtime_deps in the build directory
+        # for which gn generates the runtime_deps next to the stamp file
         # for the label, which lives under the obj/ directory, but it may
         # also be an executable.
         label = isolate_map[target]['label']
-        rpaths = [runtime_deps]
+        rpaths = [stamp_runtime_deps]
         if win:
           rpaths += [ target + '.exe.runtime_deps' ]
         else: