Fixed grave bug in Plugin Loading code that lead to a crash with some plugins.

webkit/plugins/npapi/plugin_list_unittest.cc

Index: webkit/plugins/npapi/plugin_list_unittest.cc
diff --git a/webkit/plugins/npapi/plugin_list_unittest.cc b/webkit/plugins/npapi/plugin_list_unittest.cc
index 3e0fb47a702f5d0ed29c90a0f64fb64c85f219aa..1c5e99aeb22bc6cca378c650edf2c625271fb3b6 100644
--- a/webkit/plugins/npapi/plugin_list_unittest.cc
+++ b/webkit/plugins/npapi/plugin_list_unittest.cc
@@ -182,6 +182,20 @@ TEST_F(PluginListTest, DisableOutdated) {
   EXPECT_FALSE(group_3043->IsVulnerable());
 }
 
+TEST_F(PluginListTest, BadPluginDescription) {
+  WebPluginInfo plugin_3043(ASCIIToUTF16(""),
+                            FilePath(FILE_PATH_LITERAL("/myplugin.3.0.43")),
+                            ASCIIToUTF16(""),
+                            ASCIIToUTF16(""));
+  // Simulate loading of the plugins.
+  plugin_list_.plugins_to_load_.clear();
+  plugin_list_.plugins_to_load_.push_back(plugin_3043);
+  // Now we should have them in the state we specified above.
+  std::vector<WebPluginInfo> plugins;
+  plugin_list_.GetPlugins(true, &plugins);
+  ASSERT_TRUE(Contains(plugins, plugin_3043, true));
+}
+
 TEST_F(PluginListTest, DisableAndEnableBeforeLoad) {
   WebPluginInfo plugin_3043(ASCIIToUTF16("MyPlugin"),
                             FilePath(FILE_PATH_LITERAL("/myplugin.3.0.43")),