Deprecate chrome.extension.sendRequest in favor of sendMessage, with a safer

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 299d3a37ec05186a612161cdcc267476e232d188..9ceba2dd002eea63860295801d2aa088daf1ed2b 100644
--- a/chrome/common/extensions/api/tabs.json
+++ b/chrome/common/extensions/api/tabs.json
@@ -94,7 +94,7 @@
         "name": "sendRequest",
         "nocompile": true,
         "type": "function",
-        "description": "Sends a single request to the content script(s) in the specified tab, with an optional callback to run when a response is sent back.  The <a href='extension.html#event-onRequest'>chrome.extension.onRequest</a> event is fired in each content script running in the specified tab for the current extension.",
+        "description": "Deprecated: Please use sendMessage.",
         "parameters": [
           {
             "type": "integer",
@@ -120,6 +120,35 @@
         ]
       },
       {
+        "name": "sendMessage",
+        "nocompile": true,
+        "type": "function",
+        "description": "Sends a single message to the content script(s) in the specified tab, with an optional callback to run when a response is sent back.  The <a href='extension.html#event-onMessage'>chrome.extension.onMessage</a> event is fired in each content script running in the specified tab for the current extension.",
+        "parameters": [
+          {
+            "type": "integer",
+            "name": "tabId",
+            "minimum": 0
+          },
+          {
+            "type": "any",
+            "name": "message"
+          },
+          {
+            "type": "function",
+            "name": "responseCallback",
+            "optional": true,
+            "parameters": [
+              {
+                "name": "response",
+                "type": "any",
+                "description": "The JSON response object sent by the handler of the message. If an error occurs while connecting to the specified tab, the callback will be called with no arguments and <a href='extension.html#property-lastError'>chrome.extension.lastError</a> will be set to the error message."
+              }
+            ]
+          }
+        ]
+      },
+      {
         "name": "getSelected",
         "nodoc": true,
         "type": "function",