Enable Flapper by default with USE_AURA.

chrome/browser/component_updater/pepper_flash_component_installer.cc

Index: chrome/browser/component_updater/pepper_flash_component_installer.cc
===================================================================
--- chrome/browser/component_updater/pepper_flash_component_installer.cc	(revision 107758)
+++ chrome/browser/component_updater/pepper_flash_component_installer.cc	(working copy)
@@ -75,6 +75,13 @@
 // If we don't have a Pepper Flash component, this is the version we claim.
 const char kNullVersion[] = "0.0.0.0";
 
+// True if Pepper Flash should be enabled by default.
+#if defined(USE_AURA)
+const bool kEnablePepperFlash = true;
+#else
+const bool kEnablePepperFlash = false;
+#endif
+
 // The base directory on Windows looks like:
 // <profile>\AppData\Local\Google\Chrome\User Data\PepperFlash\.
 FilePath GetPepperFlashBaseDirectory() {
@@ -157,7 +164,7 @@
   // Register it as out-of-process and disabled.
   if (!MakePepperFlashPluginInfo(path, version, true, &plugin_info))
     return;
-  PluginPrefs::EnablePluginGlobally(false, plugin_info.path);
+  PluginPrefs::EnablePluginGlobally(kEnablePepperFlash, plugin_info.path);
   webkit::npapi::PluginList::Singleton()->RegisterInternalPlugin(
       plugin_info.ToWebPluginInfo());
   webkit::npapi::PluginList::Singleton()->RefreshPlugins();