Turn off intent picker flag by default.

This CL turns off the intent picker flag by default so it will not be
launched in M76.

BUG=939205

Change-Id: I1d332b69e588f422765b1b666e4cd32ab4c3492b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1634510
Commit-Queue: Maggie Cai <mxcai@chromium.org>
Reviewed-by: Dominick Ng <dominickn@chromium.org>
Cr-Commit-Position: refs/heads/master@{#664164}

chrome/common/chrome_features.cc

@@ -362,8 +362,14 @@ const base::Feature kInstallableAmbientBadgeInfoBar{
 
 #if !defined(OS_ANDROID)
 // Enables or disables intent picker.
-const base::Feature kIntentPicker{"IntentPicker",
-                                  base::FEATURE_ENABLED_BY_DEFAULT};
+const base::Feature kIntentPicker {
+  "IntentPicker",
+#if defined(OS_CHROMEOS)
+      base::FEATURE_ENABLED_BY_DEFAULT
+#else
+      base::FEATURE_DISABLED_BY_DEFAULT
+#endif  //  defined(OS_CHROMEOS)
+};
 #endif  // !defined(OS_ANDROID)
 
 // Uses KidsManagement UrlClassification instead of SafeSearch for supervised