Catch RuntimeException from runSynchronously.

Bug: 931177
Change-Id: Ie699786336d84ccde017466606d26073f9d1eb8b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1585961
Commit-Queue: Joshua Pawlicki <waffles@chromium.org>
Commit-Queue: Tommy Nyquist <nyquist@chromium.org>
Auto-Submit: Joshua Pawlicki <waffles@chromium.org>
Reviewed-by: Tommy Nyquist <nyquist@chromium.org>
Cr-Commit-Position: refs/heads/master@{#654505}

chrome/android/java/src/org/chromium/chrome/browser/omaha/RequestGenerator.java

@@ -198,10 +198,11 @@ public abstract class RequestGenerator {
     public int getNumGoogleAccountsOnDevice() {
         // RequestGenerator may be invoked from JobService or AlarmManager (through OmahaService),
         // so have to make sure AccountManagerFacade instance is initialized.
-        PostTask.runSynchronously(UiThreadTaskTraits.DEFAULT,
-                () -> ProcessInitializationHandler.getInstance().initializePreNative());
         int numAccounts = 0;
         try {
+            // TODO(waffles@chromium.org): Ideally, this should be asynchronous.
+            PostTask.runSynchronously(UiThreadTaskTraits.DEFAULT,
+                    () -> ProcessInitializationHandler.getInstance().initializePreNative());
             numAccounts = AccountManagerFacade.get().getGoogleAccounts().size();
         } catch (Exception e) {
             Log.e(TAG, "Can't get number of accounts.", e);