Instant Apps: Split latency recordings into two.

chrome/android/java/src/org/chromium/chrome/browser/instantapps/InstantAppsHandler.java

Index: chrome/android/java/src/org/chromium/chrome/browser/instantapps/InstantAppsHandler.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/instantapps/InstantAppsHandler.java b/chrome/android/java/src/org/chromium/chrome/browser/instantapps/InstantAppsHandler.java
index 97775eb96778f38042f95fa7e62ec8dabed77a18..c12128f0ba9e76103cca43a2916d48624fb3fc1f 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/instantapps/InstantAppsHandler.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/instantapps/InstantAppsHandler.java
@@ -77,6 +77,20 @@ public class InstantAppsHandler {
     private static final TimesHistogramSample sInstantAppsApiCallTimes = new TimesHistogramSample(
             "Android.InstantApps.ApiCallDuration2", TimeUnit.MILLISECONDS);
 
+    /**
+     * A histogram to record how long the GMS Core API call took when the instant app was found.
+     */
+    private static final TimesHistogramSample sInstantAppsApiCallTimesHasApp =
+            new TimesHistogramSample("Android.InstantApps.ApiCallDurationWithApp",
+                    TimeUnit.MILLISECONDS);
+
+    /**
+     * A histogram to record how long the GMS Core API call took when the instant app was not found.
+     */
+    private static final TimesHistogramSample sInstantAppsApiCallTimesNoApp =
+            new TimesHistogramSample("Android.InstantApps.ApiCallDurationWithoutApp",
+                    TimeUnit.MILLISECONDS);
+
     /** @return The singleton instance of {@link InstantAppsHandler}. */
     public static InstantAppsHandler getInstance() {
         synchronized (INSTANCE_LOCK) {
@@ -121,6 +135,19 @@ public class InstantAppsHandler {
     }
 
     /**
+     * Record the amount of time spent in the Instant Apps API call.
+     * @param startTime The time at which we started doing computations.
+     * @param hasApp Whether the API has found an Instant App during the call.
+     */
+    protected void recordInstantAppsApiCallTime(long startTime, boolean hasApp) {
+        if (hasApp) {
+            sInstantAppsApiCallTimesHasApp.record(SystemClock.elapsedRealtime() - startTime);
+        } else {
+            sInstantAppsApiCallTimesNoApp.record(SystemClock.elapsedRealtime() - startTime);
+        }
+    }
+
+    /**
      * In the case Chrome is called through the fallback mechanism from Instant Apps, record the
      * amount of time the whole trip took.
      * @param intent The current intent.