Add signal strength indicator icon to WebBluetooth chooser on non-Mac desktops

chrome/browser/chooser_controller/chooser_controller.cc

Index: chrome/browser/chooser_controller/chooser_controller.cc
diff --git a/chrome/browser/chooser_controller/chooser_controller.cc b/chrome/browser/chooser_controller/chooser_controller.cc
index 1a3da0a073d3150f7715a3b8baf7e66a663cc78e..ea2c78af3ec4c70891cc977cbd4e90964c704da7 100644
--- a/chrome/browser/chooser_controller/chooser_controller.cc
+++ b/chrome/browser/chooser_controller/chooser_controller.cc
@@ -50,3 +50,11 @@ base::string16 ChooserController::GetTitle() const {
       url_formatter::FormatOriginForSecurityDisplay(
           origin, url_formatter::SchemeDisplay::OMIT_CRYPTOGRAPHIC));
 }
+
+bool ChooserController::ShouldShowIconBeforeText() const {
+  return false;
+}
+
+int ChooserController::GetSignalStrengthLevel(size_t index) const {
+  return -1;
+}