Rename browser_side_navigation_browser_tests.cc

BrowserSideNavigation (aka PlzNavigate) launched. There is no more need
to prefix those tests with the "BrowserSide" prefix.

Bug: 789577
Change-Id: I5987644fdee4020eae1d7e420be1d24f6c656919
Reviewed-on: https://chromium-review.googlesource.com/1233493
Commit-Queue: Arthur Sonzogni <arthursonzogni@chromium.org>
Reviewed-by: Camille Lamy <clamy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#592411}

content/test/BUILD.gn

@@ -734,7 +734,6 @@ test("content_browsertests") {
     "../browser/blob_storage/blob_storage_browsertest.cc",
     "../browser/blob_storage/blob_url_browsertest.cc",
     "../browser/bookmarklet_browsertest.cc",
-    "../browser/browser_side_navigation_browsertest.cc",
     "../browser/browser_thread_browsertest.cc",
     "../browser/browsing_data/browsing_data_remover_impl_browsertest.cc",
     "../browser/browsing_data/clear_site_data_handler_browsertest.cc",
@@ -815,6 +814,7 @@ test("content_browsertests") {
     "../browser/memory/memory_coordinator_impl_browsertest.cc",
     "../browser/message_port_provider_browsertest.cc",
     "../browser/mojo_sandbox_browsertest.cc",
+    "../browser/navigation_browsertest.cc",
     "../browser/net/accept_header_browsertest.cc",
     "../browser/net_info_browsertest.cc",
     "../browser/network_service_browsertest.cc",