Add flags for permission prompt experiments.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 26566dac363832203729e6257d05b873a373ece9..84e4ee9f9f61bc2c9e362fd6caf6a31dd3be7967 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -15581,6 +15581,23 @@ read aloud to screenreader users to announce that a completion is available.">
     </if>
 
     <if expr="is_android">
+      <message name="IDS_FLAGS_MODAL_PERMISSION_PROMPTS_NAME" desc="Name for the flag to enable modal permission prompts on Android" translateable="false">
+        Modal Permission Prompts
+      </message>
+      <message name="IDS_FLAGS_MODAL_PERMISSION_PROMPTS_DESCRIPTION" desc="Description for the flag to enable modal permission prompts on Android." translateable="false">
+        Whether to use permission dialogs in place of permission infobars.
+      </message>
+    </if>
+    <if expr="not is_macosx">
+      <message name="IDS_FLAGS_PERMISSION_PROMPT_PERSISTENCE_TOGGLE_NAME" desc="Name for the flag to enable a persistence toggle in permission prompts" translateable="false">

[benwells, 2016/11/02 06:32:43]

Nit: should this desc say "on Android" like all the others you're adding?

[dominickn, 2016/11/02 07:08:47]

No, because this flag is on all non-OS X platforms right now.

[benwells, 2016/11/02 07:14:05]

Ah, OK, then the desc for the next one (....PERSISTENCE....DESCRIPTION)
shouldn't say "on Android" to match...

[dominickn, 2016/11/03 00:12:56]

Done.

+        Modal Permission Prompts

[benwells, 2016/11/02 06:32:42]

I think this string is incorrect.

[dominickn, 2016/11/02 07:08:47]

Done.

+      </message>
+      <message name="IDS_FLAGS_PERMISSION_PROMPT_PERSISTENCE_TOGGLE_DESCRIPTION" desc="Description for the flag to enable a persistence toggle in permission prompts on Android" translateable="false">
+        Whether to display a persistence toggle in permission prompts.
+      </message>
+    </if>
+
+    <if expr="is_android">
       <message name="IDS_FLAGS_NO_CREDIT_CARD_ABORT" desc="Title for the flag to enable the No Card Abort in Payment Request." translateable="false">
         No Credit Card Abort
       </message>