合并网页截图功能（张君秋的代码）

packages/shell-chrome/assets/html/screenshot/manifest.json

@@ -0,0 +1,36 @@
+{
+  "manifest_version": 2,
+  "name"            : "Screenshot Capture",
+  "version"         : "2.0",
+  "description"     : "Screenshot Capture",
+
+  "browser_action": {
+    
+    "default_title": "Screenshot Capture"
+  },
+
+  "background" : {
+    "scripts": [
+      "background.js"
+    ],
+    "persistent": false
+  },
+
+  "web_accessible_resources": [
+    "/images/Jcrop.gif",
+    "/images/pixel.png"
+  ],
+
+  "commands": {
+    "take-screenshot": {
+      "suggested_key": {
+        "default": "Alt+S"
+      },
+      "description": "Take Screenshot"
+    }
+  },
+  "permissions": [
+    "storage",
+    "activeTab"
+  ]
+}