Omnibox: Make HistoryURL Highlight Titles like HistoryQuick Provider

chrome/browser/autocomplete/history_provider.cc

Index: chrome/browser/autocomplete/history_provider.cc
diff --git a/chrome/browser/autocomplete/history_provider.cc b/chrome/browser/autocomplete/history_provider.cc
index 64d7063acf981e3bc54ec038b1c9d6b2d009149f..efd6bb929e84b3be912d7f6c7ef1cb541c0cfdd2 100644
--- a/chrome/browser/autocomplete/history_provider.cc
+++ b/chrome/browser/autocomplete/history_provider.cc
@@ -13,6 +13,7 @@
 #include "chrome/browser/autocomplete/autocomplete_provider_listener.h"
 #include "chrome/browser/history/history_service.h"
 #include "chrome/browser/history/history_service_factory.h"
+#include "chrome/browser/history/in_memory_url_index_types.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/net/url_fixer_upper.h"
 #include "chrome/common/url_constants.h"
@@ -157,3 +158,36 @@ bool HistoryProvider::PreventInlineAutocomplete(
       (!input.text().empty() &&
        IsWhitespace(input.text()[input.text().length() - 1]));
 }
+
+// static
+ACMatchClassifications HistoryProvider::SpansFromTermMatch(
+    const history::TermMatches& matches,
+    size_t text_length,
+    bool is_url) {
+  ACMatchClassification::Style url_style =
+      is_url ? ACMatchClassification::URL : ACMatchClassification::NONE;
+  ACMatchClassifications spans;
+  if (matches.empty()) {
+    if (text_length)
+      spans.push_back(ACMatchClassification(0, url_style));
+    return spans;
+  }
+  if (matches[0].offset)
+    spans.push_back(ACMatchClassification(0, url_style));
+  size_t match_count = matches.size();
+  for (size_t i = 0; i < match_count;) {
+    size_t offset = matches[i].offset;
+    spans.push_back(ACMatchClassification(offset,
+        ACMatchClassification::MATCH | url_style));
+    // Skip all adjacent matches.
+    do {
+      offset += matches[i].length;
+      ++i;
+    } while ((i < match_count) && (offset == matches[i].offset));
+    if (offset < text_length)
+      spans.push_back(ACMatchClassification(offset, url_style));
+  }
+
+  return spans;
+}
+