Allow the history URL provider to handle input of type QUERY. This helps in ...

chrome/browser/autocomplete/autocomplete.h

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_H_
 #define CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 45 matching lines @@
 // Keyword (inexact match)                                             |  450
 // Search Secondary Provider (what you typed)                          |  250
 // Search Secondary Provider (past query in history)                   |  200--
 // Search Secondary Provider (navigational suggestion)                 |  150++
 // Search Secondary Provider (suggestion)                              |  100++
 //
 // REQUESTED_URL input type:
 // --------------------------------------------------------------------|-----
 // Keyword (non-substituting or in keyword UI mode, exact match)       | 1500
 // HistoryURL (exact or inline autocomplete match)                     | 1400
-// HistoryURL (what you typed)                                         | 1300
-// Search Primary Provider (what you typed)                            | 1200
+// HistoryURL (what you typed)                                         | 1200
+// Search Primary Provider (what you typed)                            | 1150
 // Keyword (substituting, exact match)                                 | 1100
 // Search Primary Provider (past query in history)                     | 1050--
 // HistoryContents (any match in title of starred page)                | 1000++
 // HistoryURL (inexact match)                                          |  900++
 // Search Primary Provider (navigational suggestion)                   |  800++
 // HistoryContents (any match in title of nonstarred page)             |  700++
 // Search Primary Provider (suggestion)                                |  600++
 // HistoryContents (any match in body of starred page)                 |  550++
 // HistoryContents (any match in body of nonstarred page)              |  500++
 // Keyword (inexact match)                                             |  450
@@ skipping 15 matching lines @@
 // Keyword (inexact match)                                             |  700
 // Search Primary Provider (suggestion)                                |  300++
 // Search Secondary Provider (what you typed)                          |  250
 // Search Secondary Provider (past query in history)                   |  200--
 // Search Secondary Provider (navigational suggestion)                 |  150++
 // Search Secondary Provider (suggestion)                              |  100++
 //
 // QUERY input type:
 // --------------------------------------------------------------------|-----
 // Keyword (non-substituting or in keyword UI mode, exact match)       | 1500
-// Keyword (substituting, exact match)                                 | 1400
+// Keyword (substituting, exact match)                                 | 1450
+// HistoryURL (exact or inline autocomplete match)                     | 1400
 // Search Primary Provider (what you typed)                            | 1300
-// Search Primary Provider (past query in history)                     | 1250--
-// HistoryContents (any match in title of starred page)                | 1200++
-// Search Primary Provider (navigational suggestion)                   | 1000++
-// HistoryContents (any match in title of nonstarred page)             |  900++
-// Search Primary Provider (suggestion)                                |  800++
-// HistoryContents (any match in body of starred page)                 |  750++
-// HistoryContents (any match in body of nonstarred page)              |  700++
-// Keyword (inexact match)                                             |  650
+// Search Primary Provider (past query in history)                     | 1050--
+// HistoryContents (any match in title of starred page)                | 1000++
+// HistoryURL (inexact match)                                          |  900++
+// Search Primary Provider (navigational suggestion)                   |  800++
+// HistoryContents (any match in title of nonstarred page)             |  700++
+// Search Primary Provider (suggestion)                                |  600++
+// HistoryContents (any match in body of starred page)                 |  550++
+// HistoryContents (any match in body of nonstarred page)              |  500++
+// Keyword (inexact match)                                             |  450
 // Search Secondary Provider (what you typed)                          |  250
 // Search Secondary Provider (past query in history)                   |  200--
 // Search Secondary Provider (navigational suggestion)                 |  150++
 // Search Secondary Provider (suggestion)                              |  100++
 //
 // FORCED_QUERY input type:
 // --------------------------------------------------------------------|-----
-// Search Primary Provider (what you typed)                            | 1500
-// Search Primary Provider (past query in history)                     | 1250--
-// HistoryContents (any match in title of starred page)                | 1200++
-// Search Primary Provider (navigational suggestion)                   | 1000++
-// HistoryContents (any match in title of nonstarred page)             |  900++
-// Search Primary Provider (suggestion)                                |  800++
-// HistoryContents (any match in body of starred page)                 |  750++
-// HistoryContents (any match in body of nonstarred page)              |  700++
+// Search Primary Provider (what you typed)                            | 1300
+// Search Primary Provider (past query in history)                     | 1050--
+// HistoryContents (any match in title of starred page)                | 1000++
+// Search Primary Provider (navigational suggestion)                   |  800++
+// HistoryContents (any match in title of nonstarred page)             |  700++
+// Search Primary Provider (suggestion)                                |  600++
+// HistoryContents (any match in body of starred page)                 |  550++
+// HistoryContents (any match in body of nonstarred page)              |  500++
 //
 // (A search keyword is a keyword with a replacement string; a bookmark keyword
 // is a keyword with no replacement string, that is, a shortcut for a URL.)
 //
 // There are two possible providers for search suggestions. If the user has
 // typed a keyword, then the primary provider is the keyword provider and the
 // secondary provider is the default provider. If the user has not typed a
 // keyword, then the primary provider corresponds to the default provider.
 //
 // The value column gives the ranking returned from the various providers.
@@ skipping 12 matching lines @@
 class TemplateURL;
 
 typedef std::vector<AutocompleteMatch> ACMatches;
 typedef std::vector<AutocompleteProvider*> ACProviders;
 
 // AutocompleteInput ----------------------------------------------------------
 
 // The user input for an autocomplete query.  Allows copying.
 class AutocompleteInput {
  public:
+  // Note that the type below may be misleading.  For example, "http:/" alone
+  // cannot be opened as a URL, so it is marked as a QUERY; yet the user
+  // probably intends to type more and have it eventually become a URL, so we
+  // need to make sure we still run it through inline autocomplete.
   enum Type {
     INVALID,        // Empty input
     UNKNOWN,        // Valid input whose type cannot be determined
     REQUESTED_URL,  // Input autodetected as UNKNOWN, which the user wants to
                     // treat as an URL by specifying a desired_tld
     URL,            // Input autodetected as a URL
     QUERY,          // Input autodetected as a query
     FORCED_QUERY,   // Input forced to be a query by an initial '?'
   };
 
@@ skipping 702 matching lines @@
   AutocompleteInput::Type input_type;
   // Selected index (if selected) or -1 (AutocompletePopupModel::kNoMatch).
   size_t selected_index;
   // Inline autocompleted length (if displayed).
   size_t inline_autocompleted_length;
   // Result set.
   const AutocompleteResult& result;
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_H_