localStorage: Aggressively flush to disk for Android WebView.

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
diff --git a/content/public/common/content_switches.cc b/content/public/common/content_switches.cc
index f264701cee9c4455cb1ca5a1579fa4175cddd17c..2564f5f8d098a0efca5d1a22573f6649f6c9dd2d 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -940,6 +940,10 @@ const char kRemoteDebuggingSocketName[]     = "remote-debugging-socket-name";
 const char kRendererWaitForJavaDebugger[] = "renderer-wait-for-java-debugger";
 #endif
 
+// Enable the aggressive flushing of DOM Storage to minimize data loss.
+const char kEnableAggressiveDOMStorageFlushing[] =
+    "enable-aggressive-domstorage-flushing";
+
 // Disable web audio API.
 const char kDisableWebAudio[]               = "disable-webaudio";