Change browser/page action default icon defined in manifest to support hidpi.

chrome/common/extensions/docs/server2/templates/intros/pageAction.html

Index: chrome/common/extensions/docs/server2/templates/intros/pageAction.html
diff --git a/chrome/common/extensions/docs/server2/templates/intros/pageAction.html b/chrome/common/extensions/docs/server2/templates/intros/pageAction.html
index 86930f1715fe78be0d05c662fc3ff0559d97d957..e284caafa66d08af5a308d23fc265606086f99bf 100644
--- a/chrome/common/extensions/docs/server2/templates/intros/pageAction.html
+++ b/chrome/common/extensions/docs/server2/templates/intros/pageAction.html
@@ -43,9 +43,29 @@ like this:
   "name": "My extension",
   ...
   <b>"page_action": {
-    "default_icon": "icons/foo.png", <em>// optional</em>
-    "default_title": "Do action",    <em>// optional; shown in tooltip</em>
-    "default_popup": "popup.html"    <em>// optional</em>
+    "default_icon": {                    <em>// optional</em>
+      "19": "images/icon19.png",           <em>// optional</em>
+      "38": "images/icon38.png"            <em>// optional</em>
+    },
+    "default_title": "Google Mail",      <em>// optional; shown in tooltip</em>
+    "default_popup": "popup.html"        <em>// optional</em>
+  }</b>,
+  ...
+}</pre>
+
+<p>
+If you don't care about icon appearance when screens's device-independent

[Jeffrey Yasskin, 2012/09/17 20:18:39]

Ditto from browserAction.html.

[tbarzic, 2012/09/17 22:06:10]

Done.

+pixel (dip) size is different than its physical pixel size, you can register
+the default icon like this:
+</p>
+
+<pre>{
+  "name": "My extension",
+  ...
+  <b>"page_action": {
+    ...
+    "default_icon": "images/icon19.png"  <em>// optional</em>
+    <em>// equal to "default_icon": { "19": "images/icon19.png" }</em>
   }</b>,
   ...
 }</pre>
@@ -105,4 +125,4 @@ You can find simple examples of using page actions in the
 directory.
 For other examples and for help in viewing the source code, see
 <a href="samples.html">Samples</a>.
-</p>
+</p>