DevTools headless harness: allow loadScript.

TBR: kvitekp
Change-Id: Ib8fec97ff936788c9e783686531a98929c4b801f
Reviewed-on: https://chromium-review.googlesource.com/1132621Reviewed-by: Pavel Feldman <pfeldman@chromium.org>
Commit-Queue: Pavel Feldman <pfeldman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#574035}

headless/test/data/protocol/inspector-protocol-test.html

@@ -26,13 +26,6 @@ DevToolsHost.dummyPageURL = `http://127.0.0.1:${window.location.port}/protocol/i
 <script src="../../resources/inspector-protocol-test.js"></script>
 <script>
 DevToolsAPI._log = text => output.push(text);
-DevToolsAPI._fetch = url => {
-  var params = new URLSearchParams(window.location.search);
-  var testScriptURL = params.get('test');
-  if (url === testScriptURL)
-    return Promise.resolve(decodeURIComponent(params.get('script')));
-  throw new Error('Can not fetch ' + url);
-};
 
 function onmessage(json) { DevToolsAPI.dispatchMessage(json); }
 </script>

headless/test/headless_protocol_browsertest.cc

@@ -50,12 +50,6 @@ class HeadlessProtocolBrowserTest
     browser_devtools_client_->SetRawProtocolListener(this);
   }
 
-  std::string EncodeQuery(const std::string& query) {
-    url::RawCanonOutputT<char> buffer;
-    url::EncodeURIComponent(query.data(), query.size(), &buffer);
-    return std::string(buffer.data(), buffer.length());
-  }
-
   void RunDevTooledTest() override {
     base::ScopedAllowBlockingForTesting allow_blocking;
     base::FilePath src_dir;
@@ -70,10 +64,11 @@ class HeadlessProtocolBrowserTest
       FinishTest();
       return;
     }
-    GURL test_url = embedded_test_server()->GetURL("/protocol/" + script_name_);
+    GURL test_url = embedded_test_server()->GetURL("harness.test",
+                                                   "/protocol/" + script_name_);
     GURL page_url = embedded_test_server()->GetURL(
-        "harness.test", "/protocol/inspector-protocol-test.html?test=" +
-                            test_url.spec() + "&script=" + EncodeQuery(script));
+        "harness.test",
+        "/protocol/inspector-protocol-test.html?test=" + test_url.spec());
     devtools_client_->GetPage()->Navigate(page_url.spec());
   }