Add MD browser to DEPS.

This tool can allow you to browser markdown files in the repository
locally. Run tools/md_browser/md_browser.py and navigate to
localhost:8080. It will point you to the root README.md. From there
you can put in relative links to navigate to your new or changed
markdown files.

Bug: angleproject:3333
Change-Id: I5b4d608e2ad7408280868eb6561f95f3e55d8e8f
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1556696
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
diff --git a/DEPS b/DEPS
index b778d5c..0086897 100644
--- a/DEPS
+++ b/DEPS
@@ -60,6 +60,11 @@
     'url': '{chromium_git}/external/deqp@{deqp_revision}',
   },
 
+  '{angle_root}/third_party/fuchsia-sdk': {
+    'url': '{chromium_git}/chromium/src/third_party/fuchsia-sdk.git@8e8db13b538ecb251e5ce9d5c781fc142f9752fd',
+    'condition': 'checkout_fuchsia and not build_with_chromium',
+  },
+
   # glmark2 is a GPL3-licensed OpenGL ES 2.0 benchmark. We use it for testing.
   '{angle_root}/third_party/glmark2/src': {
     'url': '{chromium_git}/external/github.com/glmark2/glmark2@c4b3ff5a481348e8bdc2b71ee275864db91e40b1',
@@ -101,6 +106,11 @@
     'condition': 'not build_with_chromium',
    },
 
+  '{angle_root}/third_party/Python-Markdown': {
+    'url': '{chromium_git}/chromium/src/third_party/Python-Markdown@b08af21eb795e522e1b972cb85bff59edb1ae209',
+    'condition': 'not build_with_chromium',
+  },
+
   '{angle_root}/third_party/qemu-linux-x64': {
       'packages': [
           {
@@ -173,9 +183,9 @@
     'condition': 'not build_with_chromium',
   },
 
-  '{angle_root}/third_party/fuchsia-sdk': {
-    'url': '{chromium_git}/chromium/src/third_party/fuchsia-sdk.git@8e8db13b538ecb251e5ce9d5c781fc142f9752fd',
-    'condition': 'checkout_fuchsia and not build_with_chromium',
+  '{angle_root}/tools/md_browser': {
+    'url': '{chromium_git}/chromium/src/tools/md_browser@e9462696241f3ca832890473173e03e7bcfe6adc',
+    'condition': 'not build_with_chromium',
   },
 }