Add an experimental flag to change location.reload to take a hard-reload

tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 357206fae417154f055b3054c47b0e7ab247f678..2f0ea14f3e06409b67e69a1cd3e9ba265358d214 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -102533,6 +102533,7 @@ from previous Chrome versions.
   <int value="1827369558" label="AndroidPayIntegrationV1:disabled"/>
   <int value="1828660283" label="enable-webfonts-intervention-trigger"/>
   <int value="1838990777" label="V8Future:enabled"/>
+  <int value="1839740266" label="LocationHardReload:disabled"/>
   <int value="1844110073" label="enable-app-view"/>
   <int value="1847024354" label="enable-hotword-hardware"/>
   <int value="1852630189" label="NTPBookmarkSuggestions:disabled"/>
@@ -102545,6 +102546,7 @@ from previous Chrome versions.
   <int value="1865799183" label="javascript-harmony"/>
   <int value="1866079109" label="team-drives"/>
   <int value="1867085340" label="brotli-encoding:enabled"/>
+  <int value="1872185826" label="LocationHardReload:enabled"/>
   <int value="1878331098" label="GuestViewCrossProcessFrames:enabled"/>
   <int value="1881036528" label="disable-multilingual-spellchecker"/>
   <int value="1881174782" label="disable-brotli"/>