Added dependency to jinja2 sources for mojom generator

mojom generator uses jinja2 template.
If we update jinja2 library, jinja2 may update api/internal structure.
In such case, all mojom generator using jinja2 may need to re-run.

I added jinja2_sources for such case and use it as inputs dependency for mojom generator action.
It is recommended by gn.
https://chromium.googlesource.com/chromium/src/+/master/tools/gn/docs/reference.md#target-declarations-action_declare-a-target-that-runs-a-script-a-single-time-inputs

* Minor fix
Update README.chromium to pass current presubmit check.

Change-Id: I8b7f126c3a807ac211db01c90437d584c9c39f85
Reviewed-on: https://chromium-review.googlesource.com/961763
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Yuki Shiino <yukishiino@chromium.org>
Reviewed-by: Ken Rockot <rockot@chromium.org>
Commit-Queue: Takuto Ikuta <tikuta@google.com>
Cr-Commit-Position: refs/heads/master@{#543073}

CrOS-Libchrome-Original-Commit: 18c898ac14ab3b736ec3abca95dccff782f1c351

4 files changed, 76 insertions, 34 deletions

diff --git a/third_party/jinja2/LICENSE b/third_party/jinja2/LICENSE
index 31bf900e58..10145a2643 100644
--- a/third_party/jinja2/LICENSE
+++ b/third_party/jinja2/LICENSE
@@ -1,31 +1,31 @@
-Copyright (c) 2009 by the Jinja Team, see AUTHORS for more details.
-
-Some rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
-
-    * Redistributions in binary form must reproduce the above
-      copyright notice, this list of conditions and the following
-      disclaimer in the documentation and/or other materials provided
-      with the distribution.
-
-    * The names of the contributors may not be used to endorse or
-      promote products derived from this software without specific
-      prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+Copyright (c) 2009 by the Jinja Team, see AUTHORS for more details.

+

+Some rights reserved.

+

+Redistribution and use in source and binary forms, with or without

+modification, are permitted provided that the following conditions are

+met:

+

+    * Redistributions of source code must retain the above copyright

+      notice, this list of conditions and the following disclaimer.

+

+    * Redistributions in binary form must reproduce the above

+      copyright notice, this list of conditions and the following

+      disclaimer in the documentation and/or other materials provided

+      with the distribution.

+

+    * The names of the contributors may not be used to endorse or

+      promote products derived from this software without specific

+      prior written permission.

+

+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

diff --git a/third_party/jinja2/README.chromium b/third_party/jinja2/README.chromium
index 684ff8ec0a..f1d6620f68 100644
--- a/third_party/jinja2/README.chromium
+++ b/third_party/jinja2/README.chromium
@@ -2,8 +2,8 @@ Name: Jinja2 Python Template Engine
 Short Name: jinja2
 URL: http://jinja.pocoo.org/
 Version: 2.8
-License: BSD 3-clause License
-License File: NOT_SHIPPED
+License: BSD 3-Clause
+License File: LICENSE
 Security Critical: no
 
 Description:
@@ -19,7 +19,8 @@ AUTHORS files. Unit tests (testsuite directory) have been removed.
 Additional chromium-specific files are:
 * README.chromium (this file)
 * OWNERS
-* install script (get_jinja2.sh)
+* get_jinja2.sh (install script)
+* jinja2.gni (generated by get_jinja2.sh)
 * files of hashes (MD5 is also posted on website, SHA-512 computed locally).
 Script checks hash then unpacks archive and installs desired files.
 Retrieve or update by executing jinja2/get_jinja2.sh from third_party.
diff --git a/third_party/jinja2/get_jinja2.sh b/third_party/jinja2/get_jinja2.sh
index 0018349ebc..34758ef4b7 100755
--- a/third_party/jinja2/get_jinja2.sh
+++ b/third_party/jinja2/get_jinja2.sh
@@ -120,3 +120,17 @@ mv "$INSTALL_DIR" "$OLD_DIR"
 mv "$PACKAGE_DIR" "$INSTALL_DIR"
 cd "$INSTALL_DIR"
 rm -fr "$OLD_DIR"
+
+# Generating jinja2.gni
+cat > jinja2.gni <<EOF
+# DO NOT EDIT
+# This is generated from get_jinja2.sh.
+jinja2_sources = [
+EOF
+
+for i in $(LC_COLLATE=C ls *.py)
+do
+  echo "  \"//third_party/jinja2/${i}\"," >> jinja2.gni
+done
+
+echo "]" >> jinja2.gni
diff --git a/third_party/jinja2/jinja2.gni b/third_party/jinja2/jinja2.gni
new file mode 100644
index 0000000000..85bc168257
--- /dev/null
+++ b/third_party/jinja2/jinja2.gni
@@ -0,0 +1,27 @@
+# DO NOT EDIT
+# This is generated from get_jinja2.sh.
+jinja2_sources = [
+  "//third_party/jinja2/__init__.py",
+  "//third_party/jinja2/_compat.py",
+  "//third_party/jinja2/_stringdefs.py",
+  "//third_party/jinja2/bccache.py",
+  "//third_party/jinja2/compiler.py",
+  "//third_party/jinja2/constants.py",
+  "//third_party/jinja2/debug.py",
+  "//third_party/jinja2/defaults.py",
+  "//third_party/jinja2/environment.py",
+  "//third_party/jinja2/exceptions.py",
+  "//third_party/jinja2/ext.py",
+  "//third_party/jinja2/filters.py",
+  "//third_party/jinja2/lexer.py",
+  "//third_party/jinja2/loaders.py",
+  "//third_party/jinja2/meta.py",
+  "//third_party/jinja2/nodes.py",
+  "//third_party/jinja2/optimizer.py",
+  "//third_party/jinja2/parser.py",
+  "//third_party/jinja2/runtime.py",
+  "//third_party/jinja2/sandbox.py",
+  "//third_party/jinja2/tests.py",
+  "//third_party/jinja2/utils.py",
+  "//third_party/jinja2/visitor.py",
+]