Split up mixed content devtools test into 3 separate tests

LayoutTests/http/tests/inspector-protocol/resources/mixed-content-type-test.js

Index: LayoutTests/http/tests/inspector-protocol/resources/mixed-content-type-test.js
diff --git a/LayoutTests/http/tests/inspector-protocol/resources/mixed-content-type-test.js b/LayoutTests/http/tests/inspector-protocol/resources/mixed-content-type-test.js
new file mode 100644
index 0000000000000000000000000000000000000000..10888f4cb671f7f28a4f8c4317de4ced34ac61c5
--- /dev/null
+++ b/LayoutTests/http/tests/inspector-protocol/resources/mixed-content-type-test.js
@@ -0,0 +1,30 @@
+if (window.testRunner) {
+    testRunner.overridePreference("WebKitAllowRunningInsecureContent", true);
+    testRunner.overridePreference("WebKitAllowDisplayingInsecureContent", true);
+}
+
+function test()
+{
+    InspectorTest.eventHandler["Network.requestWillBeSent"] = onRequestWillBeSent;
+    InspectorTest.sendCommand("Network.enable", {}, didEnableNetwork);
+
+    function didEnableNetwork(messageObject)
+    {
+        if (messageObject.error) {
+            InspectorTest.log("FAIL: Couldn't enable network agent" + messageObject.error.message);
+            InspectorTest.completeTest();
+            return;
+        }
+        InspectorTest.log("Network agent enabled");
+        InspectorTest.sendCommand("Runtime.evaluate", { "expression": "addIframeWithMixedContent()" });
+    }
+
+    var numRequests = 0;
+    function onRequestWillBeSent(event) {
+        var req = event.params.request;
+        InspectorTest.log("Mixed content type of " + req.url + ": " + req.mixedContentType);
+        numRequests++;
+        if (numRequests == 2)
+            InspectorTest.completeTest();
+    }
+}