Convert RequestDataResourceDispatcherHostBrowserTest tests to work with network service.

Bug: 729848
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_mojo
Change-Id: I7bafe16cda83030209f357340c6503154e9b55cf
Reviewed-on: https://chromium-review.googlesource.com/1027121Reviewed-by: Mike West <mkwst@chromium.org>
Commit-Queue: John Abd-El-Malek <jam@chromium.org>
Cr-Commit-Position: refs/heads/master@{#553531}

testing/buildbot/filters/mojo.fyi.network_browser_tests.filter

@@ -328,3 +328,5 @@
 # https://crbug.com/803871
 -CertificateTransparencyBrowserTest.ProfileRequest
 -CertificateTransparencyBrowserTest.SystemRequest
+
+# NOTE: before adding new exclusions, please reach out to network-service-dev@.

testing/buildbot/filters/mojo.fyi.network_content_browsertests.filter

@@ -41,15 +41,6 @@
 -PowerMonitorTest.TestRendererProcess
 -PowerMonitorTest.TestUtilityProcess
 -RenderViewBrowserTest.ConfirmCacheInformationPlumbed
--RequestDataResourceDispatcherHostBrowserTest.Basic
--RequestDataResourceDispatcherHostBrowserTest.BasicCrossSite
--RequestDataResourceDispatcherHostBrowserTest.CrossOriginAuxiliary
--RequestDataResourceDispatcherHostBrowserTest.CrossOriginNested
--RequestDataResourceDispatcherHostBrowserTest.FailedNavigation
--RequestDataResourceDispatcherHostBrowserTest.LinkRelPrefetch
--RequestDataResourceDispatcherHostBrowserTest.LinkRelPrefetchReferrerPolicy
--RequestDataResourceDispatcherHostBrowserTest.SameOriginAuxiliary
--RequestDataResourceDispatcherHostBrowserTest.SameOriginNested
 -WebContentsImplBrowserTest.DownloadImage_Deny_FileImage
 
 # services/network/url_loader.cc should handle failure in
@@ -100,3 +91,5 @@
 
 # https://crbug.com/808759
 -DownloadContentTest.DownloadAttributeBlobURL
+
+# NOTE: before adding new exclusions, please reach out to network-service-dev@.
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