[Contextual Search] Add metrics for Resolve and View timing

chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchPanelMetrics.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 org.chromium.chrome.browser.compositor.bottombar.OverlayPanel.PanelState;
 import org.chromium.chrome.browser.compositor.bottombar.OverlayPanel.StateChangeReason;
 import org.chromium.chrome.browser.contextualsearch.ContextualSearchUma;
 
@@ skipping 169 matching lines @@
             // Already opened, log how long it took.
             assert mSearchViewStartTimeNs != 0;
             long durationMs = (System.nanoTime() - mSearchViewStartTimeNs) / 1000000;
             logSearchPanelLoadDuration(wasPrefetch, durationMs);
         }
 
         // Not yet opened, wait till an open to log.
         mIsSearchPanelFullyPreloaded = true;
     }
 
+    public void onSearchTermResolved() {

[pedro (no code reviews), 2016/02/26 22:30:09]

Nit: JavaDoc

[Donn Denman, 2016/02/27 00:18:39]

Done.

+        long durationMs = (System.nanoTime() - mSearchViewStartTimeNs) / 1000000;
+        ContextualSearchUma.logSearchTermResolution(durationMs);
+    }
+
+    public void onSearchResultsViewable(boolean didResolve) {

[pedro (no code reviews), 2016/02/26 22:30:09]

Nit: JavaDoc

[Donn Denman, 2016/02/27 00:18:39]

Done.

+        long durationMs = (System.nanoTime() - mSearchViewStartTimeNs) / 1000000;
+        ContextualSearchUma.logSearchResultsViewable(durationMs, didResolve);
+    }
+
     /**
      * Records timing information when the search panel has been viewed for the first time.
      */
     private void onSearchPanelFirstView() {
         if (mIsSearchPanelFullyPreloaded) {
             // Already fully pre-loaded, record a wait of 0 milliseconds.
             logSearchPanelLoadDuration(true, 0);
         } else {
             // Start a loading timer.
             mSearchViewStartTimeNs = System.nanoTime();
@@ skipping 36 matching lines @@
     /**
      * Logs the duration the user waited for the search panel to fully load, once it was opened.
      * @param wasPrefetch Whether the load included prefetch.
      * @param durationMs The duration to log.
      */
     private void logSearchPanelLoadDuration(boolean wasPrefetch, long durationMs) {
         ContextualSearchUma.logSearchPanelLoadDuration(wasPrefetch, durationMs);
     }
 }