Adding a command-line flag to set MHTML generation options.

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 244e371a54a230b53b7ae00ae1ccf9d69893b614..42828c8727223517143b5502dccd6ec263a89a1c 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -635,6 +635,11 @@ const char kMaxUntiledLayerWidth[]          = "max-untiled-layer-width";
 // Renderer.Memory histogram. Used in memory tests.
 const char kMemoryMetrics[]                 = "memory-metrics";
 
+// Sets options for MHTML generator to skip no-store resources:
+//   "skip_nostore_main" - fails to save a page if main frame is 'no-store'
+//   "skip_nostore_all" - also skips no-store subresources.
+const char kMHTMLGeneratorOption[]          = "mhtml-generator-option";
+
 // Use a Mojo-based LocalStorage implementation.
 const char kMojoLocalStorage[]              = "mojo-local-storage";