Docserver: Implement the content providers infrastructure, where a

chrome/common/extensions/docs/templates/json/content_providers.json

Index: chrome/common/extensions/docs/templates/json/content_providers.json
diff --git a/chrome/common/extensions/docs/templates/json/content_providers.json b/chrome/common/extensions/docs/templates/json/content_providers.json
new file mode 100644
index 0000000000000000000000000000000000000000..8b4793403e271fc6ed7fa4f41ad2abe2f0bf3a2c
--- /dev/null
+++ b/chrome/common/extensions/docs/templates/json/content_providers.json
@@ -0,0 +1,21 @@
+{
+  // Legacy configuration for Chrome extensions and apps.
+  "cr-extensions-examples": {
+    "chroot": "docs/examples",
+    "serveFrom": "extensions/examples",
+    "supportsZip": true,

[not at google - send to devlin, 2013/11/01 20:45:18]

This does have the side-effect where any directory under extensions/examples can
be zipped up, not just the top-level ones. It doesn't seem like a big problem to
me.

+    "type": "host"
+  },
+  "cr-public": {
+    "chroot": "docs/templates/public",
+    "default": true,
+    "serveFrom": "",
+    "supportsTemplates": true,
+    "type": "host"
+  },
+  "cr-static": {
+    "chroot": "docs/static",
+    "serveFrom": "static",
+    "type": "host"
+  }
+}