Add Android fonts to blimp engine

blimp/docs/running.md

Index: blimp/docs/running.md
diff --git a/blimp/docs/running.md b/blimp/docs/running.md
index a32b4366a27b2f2dd16c01f05dc01269e5e7d934..55765518841a1ed475b83fcad5418ebca312775a 100644
--- a/blimp/docs/running.md
+++ b/blimp/docs/running.md
@@ -95,6 +95,8 @@ also start a new shell and keep the following command running:
   compositor.
 * `--disable-cached-picture-raster`: Ensures that rasterized content is not
   destroyed before serialization.
+* `--android-fonts-location=$PATH`: Path to where the fonts are located.

[maniscalco, 2016/02/25 00:56:54]

-location vs -path?  Seems like we use -path elsewhere (e.g.
blimp-client-token-path).  Can we use android-fonts-path?

[nyquist, 2016/02/25 01:16:40]

Agreed. I added a comment to the CL that is planning on introducing this switch:
https://codereview.chromium.org/1685053002

With this precedence argument:
$ git grep '\-location\"' -- *switches.cc | wc -l
0
vs
$ git grep '\-path\"' -- *switches.cc | wc -l
10

I'll update this CL if the //content owners agree.

[maniscalco, 2016/02/25 16:54:05]

Thanks for following up on this!

+  Typically this would be `out-linux/Debug/gen/blimp/fonts`.
 
 #### Typical invocation
 When the client connects to a manually specified engine instead of using the
@@ -117,6 +119,7 @@ out-linux/Debug/blimp_engine_app \
   --disable-cached-picture-raster \
   --blimp-client-token-path=/tmp/blimpengine-token \
   --user-data-dir=/tmp/blimpengine \
+  --android-fonts-location=out-linux/Debug/gen/blimp/fonts \
   --enable-logging=stderr \
   --vmodule="blimp*=1"
 ```