Turn web intents build flag on. Move the command-line flag to default on.

chrome/browser/ui/webui/options/content_settings_handler.cc

Index: chrome/browser/ui/webui/options/content_settings_handler.cc
diff --git a/chrome/browser/ui/webui/options/content_settings_handler.cc b/chrome/browser/ui/webui/options/content_settings_handler.cc
index fabd1dca1b2ce168f98d991ec6627b9235e40596..5170e670ef3a5fd8f17621097ee0642084d18cf0 100644
--- a/chrome/browser/ui/webui/options/content_settings_handler.cc
+++ b/chrome/browser/ui/webui/options/content_settings_handler.cc
@@ -284,8 +284,8 @@ void ContentSettingsHandler::GetLocalizedValues(
       CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableClickToPlay));
   localized_strings->SetBoolean("enable_web_intents",
-      CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kEnableWebIntents));
+      !CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kDisableWebIntents));
 }
 
 void ContentSettingsHandler::Initialize() {
@@ -438,10 +438,10 @@ void ContentSettingsHandler::UpdateAllOTRExceptionsViewsFromModel() {
 
 void ContentSettingsHandler::UpdateExceptionsViewFromModel(
     ContentSettingsType type) {
-  // Skip updating intents unless it's enabled from the command line.
+  // Update intents unless it's disabled from the command line.
   if (type == CONTENT_SETTINGS_TYPE_INTENTS &&
-      !CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kEnableWebIntents))
+      CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kDisableWebIntents))
     return;
 
   switch (type) {