Fix include to use shared mojo definitions

The file ads_page_load_metrics_observer.cc included a
mojo definition file from blink, instead of the shared
version. This resulted in flaky build failures, as the
blink version of the mojo is not a GN dependency, and
was sometimes not yet generated.

TBR=jkarlin@chromium.org

Bug: chromium:1095617
Change-Id: Id6930a4f7af08c6ff0344f853dea7b79ce2d3748
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2262613Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Johann Koenig <johannkoenig@google.com>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#781777}

chrome/browser/page_load_metrics/observers/ad_metrics/ads_page_load_metrics_observer.cc

@@ -44,7 +44,7 @@
 #include "services/metrics/public/cpp/metrics_utils.h"
 #include "services/metrics/public/cpp/ukm_builders.h"
 #include "services/metrics/public/cpp/ukm_recorder.h"
-#include "third_party/blink/public/mojom/devtools/inspector_issue.mojom-blink.h"
+#include "third_party/blink/public/mojom/devtools/inspector_issue.mojom-shared.h"
 #include "third_party/blink/public/mojom/web_feature/web_feature.mojom.h"
 #include "ui/base/page_transition_types.h"
 #include "ui/gfx/geometry/size.h"