Record Data Savings for Client-Side LoFi

third_party/WebKit/public/platform/WebURLRequest.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
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     kNoReport,      // Don't report metrics for this WebURLRequest.
     kReportLink,    // Report metrics with UI action link clicked.
     kReportIntent,  // Report metrics with UI action displayed intent.
   };
 
   typedef int PreviewsState;
 
   // The Previews types which determines whether to request a Preview version of
   // the resource.
   enum PreviewsTypes {
-    kPreviewsUnspecified = 0,       // Let the browser process decide whether or
-                                    // not to request Preview types.
-    kServerLoFiOn = 1 << 0,         // Request a Lo-Fi version of the resource
-                                    // from the server.
-    kClientLoFiOn = 1 << 1,         // Request a Lo-Fi version of the resource
-                                    // from the client.
-    kServerLitePageOn = 1 << 2,     // Request a Lite Page version of the
-                                    // resource from the server.
-    kPreviewsNoTransform = 1 << 3,  // Explicitly forbid Previews
-                                    // transformations.
-    kPreviewsOff = 1 << 4,          // Request a normal (non-Preview) version of
-                                    // the resource. Server transformations may
-                                    // still happen if the page is heavy.
+    kPreviewsUnspecified = 0,  // Let the browser process decide whether or
+                               // not to request Preview types.
+    kServerLoFiOn = 1 << 0,    // Request a Lo-Fi version of the resource
+                               // from the server.
+    kClientLoFiOn = 1 << 1,    // Request a Lo-Fi version of the resource
+                               // from the client.
+    kClientLoFiAutoReload = 1 << 2,  // Request the original version of the
+                                     // resource after a decoding error occurred
+                                     // when attempting to use Client Lo-Fi.
+    kServerLitePageOn = 1 << 3,      // Request a Lite Page version of the
+                                     // resource from the server.
+    kPreviewsNoTransform = 1 << 4,   // Explicitly forbid Previews
+                                     // transformations.
+    kPreviewsOff = 1 << 5,  // Request a normal (non-Preview) version of
+                            // the resource. Server transformations may
+                            // still happen if the page is heavy.
     kPreviewsStateLast = kPreviewsOff
   };
 
   // Indicates which service workers will receive fetch events for this request.
   enum class ServiceWorkerMode {
     // Relevant local and foreign service workers will get a fetch or
     // foreignfetch event for this request.
     kAll,
     // Only relevant foreign service workers will get a foreignfetch event for
     // this request.
@@ skipping 198 matching lines @@
   // instance it contains.
   std::unique_ptr<ResourceRequestContainer> owned_resource_request_;
 
   // Should never be null.
   ResourceRequest* resource_request_;
 };
 
 }  // namespace blink
 
 #endif