[Fetch][WIP] Support blob:, about:, and data: URLs.

LayoutTests/http/tests/fetch/script-tests/thorough/scheme-blob.js

Index: LayoutTests/http/tests/fetch/script-tests/thorough/scheme-blob.js
diff --git a/LayoutTests/http/tests/fetch/script-tests/thorough/scheme-blob.js b/LayoutTests/http/tests/fetch/script-tests/thorough/scheme-blob.js
new file mode 100644
index 0000000000000000000000000000000000000000..3232a22351f09e16817697a5f9c55941b31ba3b5
--- /dev/null
+++ b/LayoutTests/http/tests/fetch/script-tests/thorough/scheme-blob.js
@@ -0,0 +1,24 @@
+if (self.importScripts) {
+  importScripts('/fetch/resources/fetch-test-helpers.js');
+  importScripts('/fetch/resources/thorough-util.js');
+}
+
+var url = URL.createObjectURL(new Blob(["report({jsonpResult: 'success'});"], {type: 'application/json'}));
+
+var TEST_TARGETS = [
+// Same-origin blob: requests.
+  [BASE_URL + 'url=' + encodeURIComponent(url) + '&mode=same-origin&method=GET',
+   [fetchResolved, hasContentLength, noServerHeader, hasBody, typeBasic],
+   [checkJsonpSuccess]],
+  [BASE_URL + 'url=' + encodeURIComponent(url) + '&mode=cors&method=GET',
+   [fetchResolved, hasContentLength, noServerHeader, hasBody, typeBasic],
+   [checkJsonpSuccess]],
+  [BASE_URL + 'url=' + encodeURIComponent(url) + '&mode=no-cors&method=GET',
+   [fetchResolved, hasContentLength, noServerHeader, hasBody, typeBasic],
+   [checkJsonpSuccess]],
+];
+
+if (self.importScripts) {
+  executeTests(TEST_TARGETS);
+  done();
+}