Roll dom_distiller_js

Picked up changes:
2c57b49 Make debug output a run-time configuration instead of compile-time.
88806c2 Fix final content and title extraction.
aab9dc9 Revert https://codereview.chromium.org/290993004/
8c95c16 Restore Title identification.
b98b574 Add debug output for each stage of Boilerpipe.

BUG=367243,375443,375449

Review URL: https://codereview.chromium.org/302553009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@273094 0039d316-1c4b-4281-b951-d872f2087c98

third_party/dom_distiller_js/README.chromium

 Name: dom-distiller-js
 URL: https://code.google.com/p/dom-distiller
-Version: 6ef4764253
+Version: 2c57b492b1
 License: BSD
 Security Critical: yes
 

third_party/dom_distiller_js/package/proto/dom_distiller.proto

@@ -29,4 +29,11 @@ message DomDistillerResult {
 message DomDistillerOptions {
   // Whether to extract only the text (or to include the containing html).
   optional bool extract_text_only = 1;
+
+  // How much debug output to dump to window.console.
+  // (0): Logs nothing
+  // (1): Text Node data for each stage of processing
+  // (2): (1) and some node visibility information
+  // (3): (2) and extracted paging information
+  optional int32 debug_level = 2;
 }

third_party/dom_distiller_js/package/proto_gen/third_party/dom_distiller_js/dom_distiller_json_converter.h

@@ -174,6 +174,13 @@ namespace dom_distiller {
             }
             message.set_extract_text_only(field_value);
           }
+          if (dict->HasKey("2")) {
+            int field_value;
+            if (!dict->GetInteger("2", &field_value)) {
+              goto error;
+            }
+            message.set_debug_level(field_value);
+          }
           return message;
 
         error:
@@ -185,6 +192,9 @@ namespace dom_distiller {
           if (message.has_extract_text_only()) {
             dict->SetBoolean("1", message.extract_text_only());
           }
+          if (message.has_debug_level()) {
+            dict->SetInteger("2", message.debug_level());
+          }
           return dict.PassAs<base::Value>();
         }
       };