[Payments] Move JourneyLogger unit tests from Java to C++.

BUG=709529

TBR=rouslan@chromium.org

Review-Url: https://codereview.chromium.org/2805913002
Cr-Commit-Position: refs/heads/master@{#462983}

chrome/android/java_sources.gni

@@ -1463,7 +1463,6 @@ chrome_test_java_sources = [
   "javatests/src/org/chromium/chrome/browser/payments/PaymentRequestIncompletePhoneTest.java",
   "javatests/src/org/chromium/chrome/browser/payments/PaymentRequestIncompleteServerCardTest.java",
   "javatests/src/org/chromium/chrome/browser/payments/PaymentRequestJourneyLoggerTest.java",
-  "javatests/src/org/chromium/chrome/browser/payments/PaymentRequestJourneyLoggerUnitTest.java",
   "javatests/src/org/chromium/chrome/browser/payments/PaymentRequestMetricsUnitTest.java",
   "javatests/src/org/chromium/chrome/browser/payments/PaymentRequestMultipleContactDetailsTest.java",
   "javatests/src/org/chromium/chrome/browser/payments/PaymentRequestMetricsTest.java",

components/payments/core/BUILD.gn

@@ -49,6 +49,7 @@ source_set("unit_tests") {
     "address_normalizer_unittest.cc",
     "basic_card_response_unittest.cc",
     "currency_formatter_unittest.cc",
+    "journey_logger_unittest.cc",
     "payment_address_unittest.cc",
     "payment_method_data_unittest.cc",
     "payment_request_data_util_unittest.cc",
@@ -61,6 +62,7 @@ source_set("unit_tests") {
     "//base/test:test_support",
     "//components/autofill/core/browser",
     "//components/autofill/core/browser:test_support",
+    "//testing/gmock",
     "//testing/gtest",
     "//third_party/libaddressinput:test_support",
   ]

components/payments/core/journey_logger.cc

@@ -175,7 +175,7 @@ void JourneyLogger::RecordCanMakePaymentEffectOnShow() {
   if (was_show_called_)
     effect_on_show |= CMP_SHOW_DID_SHOW;
   if (could_make_payment_)
-    effect_on_show |= CMP_SHOW_COULD_MAKE_PAYMENT_;
+    effect_on_show |= CMP_SHOW_COULD_MAKE_PAYMENT;
 
   UMA_HISTOGRAM_ENUMERATION("PaymentRequest.CanMakePayment.Used.EffectOnShow",
                             effect_on_show, CMP_SHOW_MAX);

components/payments/core/journey_logger.h

@@ -50,7 +50,7 @@ class JourneyLogger {
   // Payment Request is shown to the user.
   static const int CMP_SHOW_COULD_NOT_MAKE_PAYMENT_AND_DID_NOT_SHOW = 0;
   static const int CMP_SHOW_DID_SHOW = 1 << 0;
-  static const int CMP_SHOW_COULD_MAKE_PAYMENT_ = 1 << 1;
+  static const int CMP_SHOW_COULD_MAKE_PAYMENT = 1 << 1;
   static const int CMP_SHOW_MAX = 4;
 
   explicit JourneyLogger(bool is_incognito);