Disable real time reporting APIs for mode A/B traffic.

Also,
1. Added browser test for that.
2. Removed checking kRealTimeReporting flag in navigator_auction.cc when
  handling rtr fields, since these IDL fields are marked RunTimeEnabled,
  and these fields will just not show up when the flag is disabled.
3. Modify WPT expectations.

Bug: 337132755

Change-Id: I61f5c0ebb96c2177574dc02fd90d7269b00f407c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5539632
Commit-Queue: Qingxin Wu <qingxinwu@google.com>
Reviewed-by: mmenke <mmenke@chromium.org>
Reviewed-by: Mason Freed <masonf@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1305132}

fledge/tentative/auction-config.https.window.js

@@ -168,6 +168,60 @@ makeTest({
   auctionConfigOverrides: {deprecatedRenderURLReplacements: {'%%No_End_Percents': 'SSP'}}
 });
 
+makeTest({
+  name: 'sellerRealTimeReportingConfig has default local reporting type',
+  expect:  EXPECT_WINNER,
+  auctionConfigOverrides: {sellerRealTimeReportingConfig:
+                            {type: 'default-local-reporting'}}
+});
+
+makeTest({
+  name: 'sellerRealTimeReportingConfig has no type',
+  expect: EXPECT_EXCEPTION(TypeError),
+  auctionConfigOverrides: {sellerRealTimeReportingConfig:
+                            {notType: 'default-local-reporting'}}
+});
+
+makeTest({
+  name: 'sellerRealTimeReportingConfig has unknown type',
+  expect:  EXPECT_WINNER,
+  auctionConfigOverrides: {sellerRealTimeReportingConfig: {type: 'unknown type'}}
+});
+
+makeTest({
+  name: 'perBuyerRealTimeReportingConfig',
+  expect: EXPECT_WINNER,
+  auctionConfigOverrides: {perBuyerRealTimeReportingConfig:
+                            {'https://example.com': {type: 'default-local-reporting'}}}
+});
+
+makeTest({
+  name: 'perBuyerRealTimeReportingConfig has invalid buyer',
+  expect: EXPECT_EXCEPTION(TypeError),
+  auctionConfigOverrides: {perBuyerRealTimeReportingConfig:
+                            {'http://example.com': {type: 'default-local-reporting'}}}
+});
+
+makeTest({
+  name: 'perBuyerRealTimeReportingConfig has no type',
+  expect: EXPECT_EXCEPTION(TypeError),
+  auctionConfigOverrides: {perBuyerRealTimeReportingConfig:
+                            {'https://example.com': {notType: 'default-local-reporting'}}}
+});
+
+makeTest({
+  name: 'perBuyerRealTimeReportingConfig has unknown type',
+  expect: EXPECT_WINNER,
+  auctionConfigOverrides: {perBuyerRealTimeReportingConfig:
+                            {'https://example.com': {type: 'unknown type'}}}
+});
+
+makeTest({
+  name: 'perBuyerRealTimeReportingConfig has no entry',
+  expect: EXPECT_WINNER,
+  auctionConfigOverrides: {perBuyerRealTimeReportingConfig: {}}
+});
+
 makeTest({
   name: 'no buyers => no winners',
   expect: EXPECT_NO_WINNER,
@@ -507,60 +561,6 @@ makeTest({
                              {width: '200furlongs', height: '200'}]}
 });
 
-makeTest({
-  name: 'sellerRealTimeReportingConfig has default local reporting type',
-  expect:  EXPECT_WINNER,
-  auctionConfigOverrides: {sellerRealTimeReportingConfig:
-                            {type: 'default-local-reporting'}}
-});
-
-makeTest({
-  name: 'sellerRealTimeReportingConfig has no type',
-  expect: EXPECT_EXCEPTION(TypeError),
-  auctionConfigOverrides: {sellerRealTimeReportingConfig:
-                            {notType: 'default-local-reporting'}}
-});
-
-makeTest({
-  name: 'sellerRealTimeReportingConfig has unknown type',
-  expect:  EXPECT_WINNER,
-  auctionConfigOverrides: {sellerRealTimeReportingConfig: {type: 'unknown type'}}
-});
-
-makeTest({
-  name: 'perBuyerRealTimeReportingConfig',
-  expect: EXPECT_WINNER,
-  auctionConfigOverrides: {perBuyerRealTimeReportingConfig:
-                            {"https://example.com": {type: 'default-local-reporting'}}}
-});
-
-makeTest({
-  name: 'perBuyerRealTimeReportingConfig has no entry',
-  expect: EXPECT_WINNER,
-  auctionConfigOverrides: {perBuyerRealTimeReportingConfig: {}}
-});
-
-makeTest({
-  name: 'perBuyerRealTimeReportingConfig has invalid buyer',
-  expect: EXPECT_EXCEPTION(TypeError),
-  auctionConfigOverrides: {perBuyerRealTimeReportingConfig:
-                            {"http://example.com": {type: 'default-local-reporting'}}}
-});
-
-makeTest({
-  name: 'perBuyerRealTimeReportingConfig has no type',
-  expect: EXPECT_EXCEPTION(TypeError),
-  auctionConfigOverrides: {perBuyerRealTimeReportingConfig:
-                            {"https://example.com": {notType: 'default-local-reporting'}}}
-});
-
-makeTest({
-  name: 'perBuyerRealTimeReportingConfig has unknown type',
-  expect: EXPECT_WINNER,
-  auctionConfigOverrides: {perBuyerRealTimeReportingConfig:
-                            {"https://example.com": {type: 'unknown type'}}}
-});
-
 subsetTest(promise_test, async test => {
   const uuid = generateUuid(test);