[Android] Add supportMultipleWindows setting

content/browser/android/content_settings.cc

Index: content/browser/android/content_settings.cc
diff --git a/content/browser/android/content_settings.cc b/content/browser/android/content_settings.cc
index 611c8c1e67bb62aaafaf5a51e47bab43d99e4bdc..5accba5961d8b3392bf6801dff130409ee951c98 100644
--- a/content/browser/android/content_settings.cc
+++ b/content/browser/android/content_settings.cc
@@ -75,6 +75,8 @@ struct ContentSettings::FieldIds {
         GetFieldID(env, clazz, "mAllowFileAccessFromFileURLs", "Z");
     java_script_can_open_windows_automatically =
         GetFieldID(env, clazz, "mJavaScriptCanOpenWindowsAutomatically", "Z");
+    support_multiple_windows =
+        GetFieldID(env, clazz, "mSupportMultipleWindows", "Z");
     dom_storage_enabled =
         GetFieldID(env, clazz, "mDomStorageEnabled", "Z");
   }
@@ -98,6 +100,7 @@ struct ContentSettings::FieldIds {
   jfieldID allow_universal_access_from_file_urls;
   jfieldID allow_file_access_from_file_urls;
   jfieldID java_script_can_open_windows_automatically;
+  jfieldID support_multiple_windows;
   jfieldID dom_storage_enabled;
 };
 
@@ -225,6 +228,12 @@ void ContentSettings::SyncFromNativeImpl() {
       prefs.javascript_can_open_windows_automatically);
   CheckException(env);
 
+  env->SetBooleanField(
+      obj,
+      field_ids_->support_multiple_windows,
+      prefs.support_multiple_windows);
+  CheckException(env);
+
   Java_ContentSettings_setPluginsDisabled(env, obj, !prefs.plugins_enabled);
   CheckException(env);
 
@@ -319,6 +328,9 @@ void ContentSettings::SyncToNativeImpl() {
   prefs.javascript_can_open_windows_automatically = env->GetBooleanField(
       obj, field_ids_->java_script_can_open_windows_automatically);
 
+  prefs.support_multiple_windows = env->GetBooleanField(
+      obj, field_ids_->support_multiple_windows);
+
   prefs.plugins_enabled = !Java_ContentSettings_getPluginsDisabled(env, obj);
 
   prefs.local_storage_enabled = env->GetBooleanField(