Implementing TabManager extensions API Discard Function.

chrome/common/extensions/api/tabs.json

Index: chrome/common/extensions/api/tabs.json
diff --git a/chrome/common/extensions/api/tabs.json b/chrome/common/extensions/api/tabs.json
index 637f3c0d3a385459ffd13c96c677085820b0d783..3e097bf8ad79f90f9aa205568eba9a614cb53307 100644
--- a/chrome/common/extensions/api/tabs.json
+++ b/chrome/common/extensions/api/tabs.json
@@ -907,6 +907,38 @@
             ]
           }
         ]
+      },
+      {
+        "name": "discard",
+        "type": "function",
+        "description": "Discards a tab from memory. Discarded tabs are still visible on the tab strip and get reloaded when clicked on.",
+        "parameters": [
+          {
+            "type": "integer",
+            "name": "tabId",
+            "optional": true,
+            "minimum": 0,
+            "description": "The ID of the tab to be discarded; defaults to the least important tab."
+          },
+          {
+            "type": "function",
+            "name": "callback",
+            "optional": true,
+            "description": "Called after the operation is completed.",
+            "parameters": [
+              {
+                "name": "tab",
+                "$ref": "Tab",
+                "description": "Discarded tab if it was successfully discarded."
+              },
+              {
+                "name": "success",
+                "type": "boolean",
+                "description": "Status describing if the tab was successfully discarded or not."
+              }
+            ]
+          }
+        ]
       }
     ],
     "events": [