[Payments] Add PaymentRequest checkout funnel UKMs.

chrome/android/java/src/org/chromium/chrome/browser/payments/JourneyLogger.java

Index: chrome/android/java/src/org/chromium/chrome/browser/payments/JourneyLogger.java
diff --git a/components/payments/content/android/java/src/org/chromium/components/payments/JourneyLogger.java b/chrome/android/java/src/org/chromium/chrome/browser/payments/JourneyLogger.java
similarity index 88%
rename from components/payments/content/android/java/src/org/chromium/components/payments/JourneyLogger.java
rename to chrome/android/java/src/org/chromium/chrome/browser/payments/JourneyLogger.java
index d8408df288bc29d5ea078a26353049c72660ebc6..a805db464a591f1e9c9650ff8cf40dafe743f580 100644
--- a/components/payments/content/android/java/src/org/chromium/components/payments/JourneyLogger.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/payments/JourneyLogger.java
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-package org.chromium.components.payments;
+package org.chromium.chrome.browser.payments;
 
 import org.chromium.base.annotations.JNINamespace;
 
@@ -37,6 +37,13 @@ public class JourneyLogger {
     public static final int CMP_SHOW_COULD_MAKE_PAYMENT = 1 << 1;
     public static final int CMP_SHOW_MAX = 4;
 
+    // The events that can occur during a Payment Request.
+    public static final int EVENT_NOT_SHOWN = 0;
+    public static final int EVENT_SHOWN = 1 << 0;

[Mathieu, 2017/04/10 15:56:18]

nit: what do you think of this sort of alignment?

https://cs.chromium.org/chromium/src/base/logging.h?rcl=89669caf0861ddd3a08e3...

[sebsg, 2017/04/10 17:27:56]

git cl format puts it back this way. WDYT?

+    public static final int EVENT_PAY_CLICKED = 1 << 1;
+    public static final int EVENT_RECEIVED_INSTRUMENT_DETAILS = 1 << 2;
+    public static final int EVENT_MAX = 8;
+
     // The minimum expected value of CustomCountHistograms is always set to 1. It is still possible
     // to log the value 0 to that type of histogram.
     private static final int MIN_EXPECTED_SAMPLE = 1;
@@ -48,10 +55,10 @@ public class JourneyLogger {
      */
     private long mJourneyLoggerAndroid;
 
-    public JourneyLogger(boolean isIncognito) {
+    public JourneyLogger(boolean isIncognito, String url) {
         // Note that this pointer could leak the native object. The called must call destroy() to
         // ensure that the native object is destroyed.
-        mJourneyLoggerAndroid = nativeInitJourneyLoggerAndroid(isIncognito);
+        mJourneyLoggerAndroid = nativeInitJourneyLoggerAndroid(isIncognito, url);
     }
 
     /** Will destroy the native object. This class shouldn't be used afterwards. */
@@ -119,6 +126,14 @@ public class JourneyLogger {
         nativeSetShowCalled(mJourneyLoggerAndroid);
     }
 
+    /**
+     * Records that an event occured.
+     */
+    public void setEventOccured(int event) {

[Mathieu, 2017/04/10 15:56:18]

*occurred

[sebsg, 2017/04/10 17:27:56]

Done.

+        assert event < EVENT_MAX;
+        nativeSetEventOccured(mJourneyLoggerAndroid, event);
+    }
+
     /*
      * Records the histograms for all the sections that were requested by the merchant and for the
      * usage of the CanMakePayment method and its effect on the transaction. This method should be
@@ -130,7 +145,7 @@ public class JourneyLogger {
         nativeRecordJourneyStatsHistograms(mJourneyLoggerAndroid, completionStatus);
     }
 
-    private native long nativeInitJourneyLoggerAndroid(boolean isIncognito);
+    private native long nativeInitJourneyLoggerAndroid(boolean isIncognito, String url);
     private native void nativeDestroy(long nativeJourneyLoggerAndroid);
     private native void nativeSetNumberOfSuggestionsShown(
             long nativeJourneyLoggerAndroid, int section, int number);
@@ -141,6 +156,7 @@ public class JourneyLogger {
     private native void nativeSetCanMakePaymentValue(
             long nativeJourneyLoggerAndroid, boolean value);
     private native void nativeSetShowCalled(long nativeJourneyLoggerAndroid);
+    private native void nativeSetEventOccured(long nativeJourneyLoggerAndroid, int event);
     private native void nativeRecordJourneyStatsHistograms(
             long nativeJourneyLoggerAndroid, int completionStatus);
 }