Android: Fix OS's large font setting not being respected

Bug: 834191
Change-Id: I3a0d79f4d281e426d41951080eb4551b646aab92
Reviewed-on: https://chromium-review.googlesource.com/1054731
Commit-Queue: agrieve <agrieve@chromium.org>
Reviewed-by: Ted Choc <tedchoc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#557927}

chrome/android/java/src/org/chromium/chrome/browser/init/AsyncInitializationActivity.java

@@ -119,6 +119,10 @@ public abstract class AsyncInitializationActivity extends AppCompatActivity impl
             int targetSmallestScreenWidthDp =
                     DisplayUtil.pxToDp(display, DisplayUtil.getSmallestWidth(display));
             Configuration config = new Configuration();
+            // Pre-Android O, fontScale gets initialized to 1 in the constructor. Set it to 0 so
+            // that applyOverrideConfiguration() does not interpret it as an overridden value.
+            // https://crbug.com/834191
+            config.fontScale = 0;
             config.smallestScreenWidthDp = targetSmallestScreenWidthDp;
             applyOverrideConfiguration(config);
         }