about:omnibox - add current page classification to possible settings

It's a bit ugly--I wish I could get the text and the dropdown indented a bit (the width of one checkbox) so it lines up with the other text. But it's not a big deal and not worth my time figuring out.

BUG=265675

Review URL: https://codereview.chromium.org/149683005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247854 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/resources/omnibox/omnibox.html

@@ -29,6 +29,20 @@
           In keyword mode
         </label>
       </p>
+      <p>
+        Current page context:
+        <select id="page-classification">
+          <option value="0">Invalid spec</option>
+          <option value="1">(OBSOLETE) new tab page</option>
+          <option value="2">about:blank</option>
+          <option value="3">user's home page</option>
+          <option value="4">arbitrary URL</option>
+          <option value="6">search result page doing search term replacement</option>
+          <option value="9">search result page not doing search term replacement</option>
+          <option value="7" selected>new tab page with focus in omnibox</option>
+          <option value="8">new tab page with focus in fakebox</option>
+        </select>
+      </p>
       <p>Display parameters:</p>
       <p>
         <label>

chrome/browser/resources/omnibox/omnibox.js

@@ -28,6 +28,7 @@ cr.define('omniboxDebug', function() {
     $('prevent-inline-autocomplete').addEventListener(
         'change', startOmniboxQuery);
     $('prefer-keyword').addEventListener('change', startOmniboxQuery);
+    $('page-classification').addEventListener('change', startOmniboxQuery);
     $('show-details').addEventListener('change', refresh);
     $('show-incomplete-results').addEventListener('change', refresh);
     $('show-all-providers').addEventListener('change', refresh);
@@ -57,17 +58,19 @@ cr.define('omniboxDebug', function() {
   function startOmniboxQuery(event) {
     // First, clear the results of past calls (if any).
     progressiveAutocompleteResults = [];
-    // Then, call chrome with a four-element list:
+    // Then, call chrome with a five-element list:
     // - first element: the value in the text box
     // - second element: the location of the cursor in the text box
     // - third element: the value of prevent-inline-autocomplete
     // - forth element: the value of prefer-keyword
+    // - fifth element: the value of page-classification
     cursorPositionUsed = $('input-text').selectionEnd;
     chrome.send('startOmniboxQuery', [
         $('input-text').value,
         cursorPositionUsed,
         $('prevent-inline-autocomplete').checked,
-        $('prefer-keyword').checked]);
+        $('prefer-keyword').checked,
+        parseInt($('page-classification').value)]);
     // Cancel the submit action.  i.e., don't submit the form.  (We handle
     // display the results solely with Javascript.)
     event.preventDefault();

chrome/browser/ui/webui/omnibox/omnibox_ui_handler.cc

@@ -173,7 +173,7 @@ bool OmniboxUIHandler::LookupIsTypedHost(const base::string16& host,
 }
 
 void OmniboxUIHandler::StartOmniboxQuery(const base::ListValue* input) {
-  DCHECK_EQ(4u, input->GetSize());
+  DCHECK_EQ(5u, input->GetSize());
   base::string16 input_string;
   bool return_val = input->GetString(0, &input_string);
   DCHECK(return_val);
@@ -186,6 +186,9 @@ void OmniboxUIHandler::StartOmniboxQuery(const base::ListValue* input) {
   bool prefer_keyword;
   return_val = input->GetBoolean(3, &prefer_keyword);
   DCHECK(return_val);
+  int current_page_classification;
+  return_val = input->GetInteger(4, &current_page_classification);
+  DCHECK(return_val);
   // Reset the controller.  If we don't do this, then the
   // AutocompleteController might inappropriately set its |minimal_changes|
   // variable (or something else) and some providers will short-circuit
@@ -198,7 +201,8 @@ void OmniboxUIHandler::StartOmniboxQuery(const base::ListValue* input) {
       cursor_position,
       base::string16(),  // user's desired tld (top-level domain)
       GURL(),
-      AutocompleteInput::INVALID_SPEC,
+      static_cast<AutocompleteInput::PageClassification>(
+          current_page_classification),
       prevent_inline_autocomplete,
       prefer_keyword,
       true,  // allow exact keyword matches

chrome/browser/ui/webui/omnibox/omnibox_ui_handler.h

@@ -55,6 +55,8 @@ class OmniboxUIHandler : public AutocompleteControllerDelegate,
   // - third element: boolean indicating whether we should set
   //   prevent_inline_autocomplete or not.
   // - fourth element: boolean indicating whether we should set prefer_keyword
+  // - fifth element: current page classification value (enum
+  //   PageClassification from omnibox_event.proto)
   void StartOmniboxQuery(const base::ListValue* input);
 
   // Helper function for OnResultChanged().

chrome/common/metrics/proto/omnibox_event.proto

@@ -108,6 +108,10 @@ message OmniboxEventProto {
     // replacement, meaning the URL of the page should've appeared in the
     // omnibox before the user started editing it, not the search terms.
     SEARCH_RESULT_PAGE_NO_SEARCH_TERM_REPLACEMENT = 9;
+
+    // When adding new classifications, please consider adding them in
+    // chrome/browser/resources/omnibox/omnibox.html
+    // so that these new options are displayed on about:omnibox.
   }
   optional PageClassification current_page_classification = 10;