DevTools: add an API for extension-supplied trace providers

third_party/WebKit/Source/devtools/front_end/extensions/ExtensionTraceProvider.js

Index: third_party/WebKit/Source/devtools/front_end/extensions/ExtensionTraceProvider.js
diff --git a/third_party/WebKit/Source/devtools/front_end/extensions/ExtensionTraceProvider.js b/third_party/WebKit/Source/devtools/front_end/extensions/ExtensionTraceProvider.js
new file mode 100644
index 0000000000000000000000000000000000000000..b6cf93c52d2183f62b5f9179850d31880c6b8086
--- /dev/null
+++ b/third_party/WebKit/Source/devtools/front_end/extensions/ExtensionTraceProvider.js
@@ -0,0 +1,26 @@
+/**
+ * @constructor
+ * @param {string} extensionOrigin
+ * @param {string} id
+ * @param {string} categoryName
+ * @param {string} categoryTooltip
+ */
+WebInspector.ExtensionTraceProvider = function(extensionOrigin, id, categoryName, categoryTooltip)
+{
+    this._extensionOrigin = extensionOrigin;
+    this._id = id;
+    this._categoryName = categoryName;
+    this._categoryTooltip = categoryTooltip;
+}
+
+WebInspector.ExtensionTraceProvider.prototype = {
+    start: function()
+    {
+        WebInspector.extensionServer.startTraceRecording(this._id);
+    },
+
+    stop: function()
+    {
+        WebInspector.extensionServer.stopTraceRecording(this._id);
+    }
+}