[Contextual Search] Add metrics for Resolve and View timing

chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchPanel.java

 // Copyright 2015 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.
 
 package org.chromium.chrome.browser.compositor.bottombar.contextualsearch;
 
 import android.app.Activity;
 import android.content.Context;
 import android.os.Handler;
 
@@ skipping 365 matching lines @@
     /**
      * Called when the SERP finishes loading, this records the duration of loading the SERP from
      * the time the panel was opened until the present.
      * @param wasPrefetch Whether the request was prefetch-enabled.
      */
     public void onSearchResultsLoaded(boolean wasPrefetch) {
         mPanelMetrics.onSearchResultsLoaded(wasPrefetch);
     }
 
     /**
+     * Called after the panel has navigated to prefetched Search Results.
+     * If the user has the panel open then they will see the prefetched result starting to load.
+     * Currently this just logs the time between the start of the search until the results start to
+     * render in the Panel.
+     * @param didResolve Whether the search required the Search Term to be resolved.
+     */
+    public void onPanelNavigatedToPrefetchedSearch(boolean didResolve) {
+        mPanelMetrics.onPanelNavigatedToPrefetchedSearch(didResolve);
+    }
+
+    /**
      * Maximizes the Contextual Search Panel, then promotes it to a regular Tab.
      * @param reason The {@code StateChangeReason} behind the maximization and promotion to tab.
      */
     public void maximizePanelThenPromoteToTab(StateChangeReason reason) {
         mShouldPromoteToTabAfterMaximizing = true;
         maximizePanel(reason);
     }
 
     /**
      * Maximizes the Contextual Search Panel, then promotes it to a regular Tab.
@@ skipping 50 matching lines @@
 
     /**
      * Shows the search term in the SearchBar. This should be called when the search term is set
      * without search term resolution.
      * @param searchTerm The string that represents the search term.
      */
     public void displaySearchTerm(String searchTerm) {
         cancelSearchTermResolutionAnimation();
         getSearchBarControl().setSearchTerm(searchTerm);
         resetSearchBarTermOpacity();
+        mPanelMetrics.onSearchRequestStarted();
     }
 
     /**
      * Shows the search context in the SearchBar.
      * @param selection The portion of the context that represents the user's selection.
      * @param end The portion of the context from the selection to its end.
      */
     public void displaySearchContext(String selection, String end) {
         cancelSearchTermResolutionAnimation();
         getSearchBarControl().setSearchContext(selection, end);
         resetSearchBarContextOpacity();
+        mPanelMetrics.onSearchRequestStarted();
     }
 
     /**
      * Handles showing the resolved search term in the SearchBar.
      * @param searchTerm The string that represents the search term.
      */
-    public void onSearchTermResolutionResponse(String searchTerm) {
+    public void onSearchTermResolved(String searchTerm) {
+        mPanelMetrics.onSearchTermResolved();
         getSearchBarControl().setSearchTerm(searchTerm);
         animateSearchTermResolution();
     }
 
     /**
      * Sets that the contextual search involved the promo.
      */
     public void setDidSearchInvolvePromo() {
         mPanelMetrics.setDidSearchInvolvePromo();
     }
@@ skipping 250 matching lines @@
 
     /**
      * Destroy the current content in the panel.
      * NOTE(mdjones): This should not be exposed. The only use is in ContextualSearchManager for a
      * bug related to loading new panel content.
      */
     public void destroyContent() {
         super.destroyOverlayPanelContent();
     }
 }