CFT: add matplotlib

BUG=b:263036541
TEST=build, run,import

Change-Id: I934e4a563b4c34af1028fcc6a3d12556ca3f8173
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/4114658
Reviewed-by: Billy Zhao <billyzhao@chromium.org>
Commit-Queue: Derek Beckett <dbeckett@chromium.org>
Tested-by: Derek Beckett <dbeckett@chromium.org>
(cherry picked from commit b67c4ee2a223b5a242802fc87b0d32766de80abf)
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/4135995
Reviewed-by: Azizur Rahman <azrahman@google.com>
diff --git a/src/chromiumos/test/dockerfiles/cros-test/Dockerfile b/src/chromiumos/test/dockerfiles/cros-test/Dockerfile
index 3037151..4173794 100644
--- a/src/chromiumos/test/dockerfiles/cros-test/Dockerfile
+++ b/src/chromiumos/test/dockerfiles/cros-test/Dockerfile
@@ -70,6 +70,9 @@
 urllib3==1.26.7\n\
 docker==4.4.4\n\
 websocket-client==1.4.0\n\
+cycler==0.11.0\n\
+kiwisolver==1.4.4\n\
+matplotlib==3.3.4\n\
 " > requirements_py3.txt
 RUN pip3 install -r requirements_py3.txt
 
diff --git a/src/chromiumos/test/dockerfiles/cros-test/requirements.in b/src/chromiumos/test/dockerfiles/cros-test/requirements.in
index 1957ebb..f42fc6f 100644
--- a/src/chromiumos/test/dockerfiles/cros-test/requirements.in
+++ b/src/chromiumos/test/dockerfiles/cros-test/requirements.in
@@ -14,4 +14,5 @@
 requests==2.26.0
 btsocket==0.1.0
 certifi==2021.5.30
-chardet==3.0.4
\ No newline at end of file
+chardet==3.0.4
+matplotlib==3.3.4
\ No newline at end of file
diff --git a/src/chromiumos/test/dockerfiles/cros-test/requirements_py3.txt b/src/chromiumos/test/dockerfiles/cros-test/requirements_py3.txt
index 7b360bc..1497f0a 100644
--- a/src/chromiumos/test/dockerfiles/cros-test/requirements_py3.txt
+++ b/src/chromiumos/test/dockerfiles/cros-test/requirements_py3.txt
@@ -14,18 +14,28 @@
     # via -r requirements.in
 charset-normalizer==2.0.9
     # via requests
+cycler==0.11.0
+    # via matplotlib
 docker==4.4.4
     # via -r requirements.in
 grpcio==1.31.0
     # via -r requirements.in
 idna==3.3
     # via requests
+kiwisolver==1.4.4
+    # via matplotlib
+matplotlib==3.3.4
+    # via -r requirements.in
 mock==3.0.5
     # via -r requirements.in
 numpy==1.16.6
-    # via -r requirements.in
+    # via
+    #   -r requirements.in
+    #   matplotlib
 pillow==8.3.2
-    # via -r requirements.in
+    # via
+    #   -r requirements.in
+    #   matplotlib
 protobuf==3.18.0
     # via -r requirements.in
 psutil==5.8.0
@@ -33,9 +43,13 @@
 pyasn1==0.4.8
     # via -r requirements.in
 pyparsing==3.0.6
-    # via -r requirements.in
+    # via
+    #   -r requirements.in
+    #   matplotlib
 python-dateutil==2.8.2
-    # via -r requirements.in
+    # via
+    #   -r requirements.in
+    #   matplotlib
 pyyaml==5.4.1
     # via -r requirements.in
 requests==2.26.0