Roll dom_distiller_js

This also changes the way DomDistillerResult is read from base::Values by
updating to the new version of DomDistillerResult::ReadFromValue which
takes in a pointer to DomDistillerResult.

This CL also makes it possible to continue using the
update_domdistiller_js.sh script without modification by moving the
BUILD.gn file for protos to outside of the generated package folder.

Picked up changes:
432b2dc Added support for reading protos into a pointer.
32f096c don't prune a subtree when its only child is a text node.
90dc83c bump up nested-table heuristic
6f59530 Make comment filter a little more restrictive.

BUG=368941,408292,409274

Review URL: https://codereview.chromium.org/514423002

Cr-Commit-Position: refs/heads/master@{#293275}

components/dom_distiller/core/BUILD.gn

@@ -55,14 +55,14 @@ static_library("core") {
     "//net",
     "//skia",
     "//sync",
-    "//third_party/dom_distiller_js/package/proto",
+    "//third_party/dom_distiller_js:proto",
     "//ui/base",
     "//url",
   ]
 
   forward_dependent_configs_from = [
     "//components/dom_distiller/core/proto",
-    "//third_party/dom_distiller_js/package/proto",
+    "//third_party/dom_distiller_js:proto",
   ]
 
   if (is_android) {

components/dom_distiller/core/distiller_page.cc

@@ -73,16 +73,18 @@ void DistillerPage::OnDistillationDone(const GURL& page_url,
   DCHECK(!ready_);
   ready_ = true;
 
-  scoped_ptr<dom_distiller::proto::DomDistillerResult> distiller_result;
-
+  scoped_ptr<dom_distiller::proto::DomDistillerResult> distiller_result(
+      new dom_distiller::proto::DomDistillerResult());
   bool found_content;
   if (value->IsType(base::Value::TYPE_NULL)) {
     found_content = false;
   } else {
-    found_content = true;
-    distiller_result.reset(new dom_distiller::proto::DomDistillerResult(
-        dom_distiller::proto::json::DomDistillerResult::ReadFromValue(value)));
-    if (distiller_result->has_timing_info()) {
+    found_content =
+        dom_distiller::proto::json::DomDistillerResult::ReadFromValue(
+            value, distiller_result.get());
+    if (!found_content) {
+      DVLOG(1) << "Unable to parse DomDistillerResult.";
+    } else if (distiller_result->has_timing_info()) {
       const dom_distiller::proto::TimingInfo& timing =
           distiller_result->timing_info();
       if (timing.has_markup_parsing_time()) {

third_party/dom_distiller_js/package/proto/BUILD.gn → third_party/dom_distiller_js/BUILD.gn

@@ -16,6 +16,6 @@ source_set("proto") {
 
 proto_library("dom_distiller_proto") {
   visibility = ":*"
-  sources = [ "dom_distiller.proto" ]
+  sources = [ "package/proto/dom_distiller.proto" ]
   proto_out_dir = "third_party/dom_distiller_js"
 }

third_party/dom_distiller_js/README.chromium

 Name: dom-distiller-js
 URL: https://code.google.com/p/dom-distiller
-Version: 078e633ac4
+Version: 432b2dc38e
 License: BSD
 Security Critical: yes