[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 93fcea985fbe2bcf1196e8e81624d80753baf6c0..f381672b00874500481a0eb9e365aa406c8f8a2c 100644
--- a/content/browser/android/content_settings.cc
+++ b/content/browser/android/content_settings.cc
@@ -76,6 +76,8 @@ 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");
   }
@@ -100,6 +102,7 @@ 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;
 };
 
@@ -236,6 +239,12 @@ void ContentSettings::SyncFromNativeImpl() {
       prefs.javascript_can_open_windows_automatically);
   CheckException(env);
 
+  env->SetBooleanField(
+      obj,
+      field_ids_->support_multiple_windows,
+      prefs.supports_multiple_windows);
+  CheckException(env);
+
   Java_ContentSettings_setPluginsDisabled(env, obj, !prefs.plugins_enabled);
   CheckException(env);
 
@@ -337,6 +346,9 @@ void ContentSettings::SyncToNativeImpl() {
   prefs.javascript_can_open_windows_automatically = env->GetBooleanField(
       obj, field_ids_->java_script_can_open_windows_automatically);
 
+  prefs.supports_multiple_windows = env->GetBooleanField(
+      obj, field_ids_->support_multiple_windows);
+
   prefs.plugins_enabled = !Java_ContentSettings_getPluginsDisabled(env, obj);
 
   prefs.local_storage_enabled = env->GetBooleanField(