Add proper data_deps to dawn_perf_tests.

Currently the Chromium build defines a wrapper build target
for Dawn (//chrome/test:dawn_perf_tests) that seems to exist
only to specify some extra data dependencies. By moving this
data dependencies onto the Dawn dawn_perf_tests itself, this
removes a problematic target in Chromium that would otherwise
block my planned changes for crbug.com/816629.

Bug: chromium:816629
Change-Id: I428698fe164bd1aad09c8dba14e57a4b7acebb1c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/24302
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
diff --git a/src/tests/BUILD.gn b/src/tests/BUILD.gn
index a1e7741..201ff08 100644
--- a/src/tests/BUILD.gn
+++ b/src/tests/BUILD.gn
@@ -470,10 +470,11 @@
 
   libs = []
 
-  # When building inside Chromium, use their gtest main function because it is
-  # needed to run in swarming correctly.
+  # When building inside Chromium, use their gtest main function and the
+  # other perf test scaffolding in order to run in swarming correctly.
   if (build_with_chromium) {
     deps += [ ":dawn_perf_tests_main" ]
+    data_deps = [ "//testing:run_perf_test" ]
   } else {
     sources += [ "PerfTestsMain.cpp" ]
   }