[2] Adding a method to PluginFinder to get a PluginInstaller by WebPluginInfo.

chrome/browser/resources/plugin_metadata/plugins_linux.json

Index: chrome/browser/resources/plugin_metadata/plugins_linux.json
diff --git a/chrome/browser/resources/plugin_metadata/plugins_linux.json b/chrome/browser/resources/plugin_metadata/plugins_linux.json
index 85546e56219dc5129608187086cd52adee391bd2..e3aad1c18c803344dbb6c705b49dc73b1b05e94f 100644
--- a/chrome/browser/resources/plugin_metadata/plugins_linux.json
+++ b/chrome/browser/resources/plugin_metadata/plugins_linux.json
@@ -9,7 +9,8 @@
         "comment": "'Google Talk Plugin' and 'Google Talk Plugin Video Accelerator' use two completely different versioning schemes, so we can't define a minimum version."
       }
     ],
-    "name": "Google Talk"
+    "name": "Google Talk",
+    "group_name_matcher": "Google Talk"
   },
   "java-runtime-environment": {
     "mime_types": [
@@ -65,7 +66,8 @@
     "name": "Java(TM)",
     "help_url": "https://support.google.com/chrome/?p=plugin_java",
     "url": "http://java.com/download",
-    "displayurl": true
+    "displayurl": true,
+    "group_name_matcher": "Java"
   },
   "adobe-flash-player": {
     "mime_types": [
@@ -83,7 +85,8 @@
     "name": "Adobe Flash Player",
     "help_url": "https://support.google.com/chrome/?p=plugin_flash",
     "url": "http://get.adobe.com/flashplayer/",
-    "displayurl": true
+    "displayurl": true,
+    "group_name_matcher": "Shockwave Flash"
   },
   "redhat-icetea-java": {
     "mime_types": [
@@ -125,6 +128,20 @@
     "lang": "en-US",
     "name": "IcedTea",
     "url": "http://icedtea.classpath.org/",
-    "displayurl": true
+    "displayurl": true,
+    "group_name_matcher": "IcedTea"
+  },
+  "google-chrome-pdf": {
+    "mime_types": [
+    ],
+    "versions": [
+      {
+        "version": "0",
+        "status": "up_to_date",
+        "comment": "Google Chrome PDF has no version information."
+      }
+    ],
+    "name": "Chrome PDF Viewer",
+    "group_name_matcher": "Chrome PDF Viewer"
   }
 }