[ios] Shard ios_chrome_bookmarks_egtests.

This test is getting close to 30 minutes.  There are 6 test cases, so sharding
it to 2 tests cases per will use 3 machines, and bring test runs closer to ten minutes.

This also renames the test cases to end in TestCase, which is how sharding does it's
math.

Change-Id: I7c4f58e89534b1d526fbfc026cbecb76c61a745e
Reviewed-on: https://chromium-review.googlesource.com/c/1331130Reviewed-by: John Budorick <jbudorick@chromium.org>
Reviewed-by: edchin <edchin@chromium.org>
Reviewed-by: Sergio Collazos <sczs@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#607378}

ios/build/bots/tests/eg_tests.json

@@ -5,6 +5,7 @@
   "tests": [
     {
       "app": "ios_chrome_bookmarks_egtests",
+      "shard size": 2,
       "xctest": true
     },
     {

ios/chrome/browser/ui/bookmarks/bookmarks_egtest.mm

@@ -1694,10 +1694,10 @@ id<GREYMatcher> SearchIconButton() {
 @end
 
 // Bookmark entries integration tests for Chrome.
-@interface BookmarksTestCaseEntries : ChromeTestCase
+@interface BookmarksEntriesTestCase : ChromeTestCase
 @end
 
-@implementation BookmarksTestCaseEntries
+@implementation BookmarksEntriesTestCase
 
 - (void)setUp {
   [super setUp];
@@ -1720,7 +1720,7 @@ id<GREYMatcher> SearchIconButton() {
       clearBookmarkTopMostRowCacheWithPrefService:browser_state->GetPrefs()];
 }
 
-#pragma mark - BookmarksTestCaseEntries Tests
+#pragma mark - BookmarksEntriesTestCase Tests
 
 - (void)testUndoDeleteBookmarkFromSwipe {
   // TODO(crbug.com/851227): On Compact Width on iOS11, the
@@ -2705,10 +2705,10 @@ id<GREYMatcher> SearchIconButton() {
 @end
 
 // Bookmark promo integration tests for Chrome.
-@interface BookmarksTestCasePromo : ChromeTestCase
+@interface BookmarksPromoTestCase : ChromeTestCase
 @end
 
-@implementation BookmarksTestCasePromo
+@implementation BookmarksPromoTestCase
 
 - (void)setUp {
   [super setUp];
@@ -2731,7 +2731,7 @@ id<GREYMatcher> SearchIconButton() {
       clearBookmarkTopMostRowCacheWithPrefService:browser_state->GetPrefs()];
 }
 
-#pragma mark - BookmarksTestCasePromo Tests
+#pragma mark - BookmarksPromoTestCase Tests
 
 // Tests that the promo view is only seen at root level and not in any of the
 // child nodes.
@@ -2919,10 +2919,10 @@ id<GREYMatcher> SearchIconButton() {
 @end
 
 // Bookmark accessibility tests for Chrome.
-@interface BookmarksTestCaseAccessibility : ChromeTestCase
+@interface BookmarksAccessibilityTestCase : ChromeTestCase
 @end
 
-@implementation BookmarksTestCaseAccessibility
+@implementation BookmarksAccessibilityTestCase
 
 - (void)setUp {
   [super setUp];
@@ -2945,7 +2945,7 @@ id<GREYMatcher> SearchIconButton() {
       clearBookmarkTopMostRowCacheWithPrefService:browser_state->GetPrefs()];
 }
 
-#pragma mark - BookmarksTestCaseAccessibility Tests
+#pragma mark - BookmarksAccessibilityTestCase Tests
 
 // Tests that all elements on the bookmarks landing page are accessible.
 - (void)testAccessibilityOnBookmarksLandingPage {
@@ -3095,10 +3095,10 @@ id<GREYMatcher> SearchIconButton() {
 @end
 
 // Bookmark folders integration tests for Chrome.
-@interface BookmarksTestCaseFolders : ChromeTestCase
+@interface BookmarksFoldersTestCase : ChromeTestCase
 @end
 
-@implementation BookmarksTestCaseFolders
+@implementation BookmarksFoldersTestCase
 
 - (void)setUp {
   [super setUp];
@@ -4036,10 +4036,10 @@ id<GREYMatcher> SearchIconButton() {
 @end
 
 // Bookmark search integration tests for Chrome.
-@interface BookmarksTestCaseSearch : ChromeTestCase
+@interface BookmarksSearchTestCase : ChromeTestCase
 @end
 
-@implementation BookmarksTestCaseSearch
+@implementation BookmarksSearchTestCase
 
 - (void)setUp {
   [super setUp];
@@ -4062,7 +4062,7 @@ id<GREYMatcher> SearchIconButton() {
       clearBookmarkTopMostRowCacheWithPrefService:browser_state->GetPrefs()];
 }
 
-#pragma mark - BookmarksTestCaseSearch Tests
+#pragma mark - BookmarksSearchTestCase Tests
 
 // Tests that the search bar is shown on root.
 - (void)testSearchBarShownOnRoot {