Make EarlGrey matchers compliant with Chromium style.

ios/chrome/browser/ui/authentication/signin_interaction_controller_egtest.mm

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import <EarlGrey/EarlGrey.h>
 #import <XCTest/XCTest.h>
 
 #include "base/strings/sys_string_conversions.h"
 #import "base/test/ios/wait_util.h"
 #include "components/signin/core/browser/signin_manager.h"
@@ skipping 51 matching lines @@
   // collection view might duplicate it (with the old one being hidden but
   // EarlGrey can find it).
   id<GREYMatcher> matcher = grey_allOf(grey_accessibilityID(accessiblity_id),
                                        grey_sufficientlyVisible(), nil);
   [[EarlGrey selectElementWithMatcher:matcher] performAction:grey_tap()];
 }
 
 // Taps the button with accessibility label |label|.
 void TapButtonWithAccessibilityLabel(NSString* label) {
   id<GREYMatcher> matcher =
-      chrome_test_util::buttonWithAccessibilityLabel(label);
+      chrome_test_util::ButtonWithAccessibilityLabel(label);
   [[EarlGrey selectElementWithMatcher:matcher] performAction:grey_tap()];
 }
 
 // Taps the button with accessibility labelId |message_id|.
 void TapButtonWithLabelId(int message_id) {
   id<GREYMatcher> matcher =
-      chrome_test_util::buttonWithAccessibilityLabelId(message_id);
+      chrome_test_util::ButtonWithAccessibilityLabelId(message_id);
   [[EarlGrey selectElementWithMatcher:matcher] performAction:grey_tap()];
 }
 
 // Opens the signin screen from the settings page. Must be called from the NTP.
 // User must not be signed in.
 void OpenSignInFromSettings() {
   const CGFloat scroll_displacement = 50.0;
 
   [ChromeEarlGreyUI openToolsMenu];
   [[[EarlGrey
@@ skipping 161 matching lines @@
   identity_service->AddIdentity(identity);
 
   // Sign in to |managed_identity|.
   OpenSignInFromSettings();
   TapButtonWithAccessibilityLabel(managed_identity.userEmail);
   TapButtonWithLabelId(IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_SIGNIN_BUTTON);
 
   // Accept warning for signing into a managed identity, with synchronization
   // off due to an infinite spinner.
   SetEarlGreySynchronizationEnabled(NO);
-  WaitForMatcher(chrome_test_util::buttonWithAccessibilityLabelId(
+  WaitForMatcher(chrome_test_util::ButtonWithAccessibilityLabelId(
       IDS_IOS_MANAGED_SIGNIN_ACCEPT_BUTTON));
   TapButtonWithLabelId(IDS_IOS_MANAGED_SIGNIN_ACCEPT_BUTTON);
   SetEarlGreySynchronizationEnabled(YES);
 
   TapButtonWithLabelId(IDS_IOS_ACCOUNT_CONSISTENCY_CONFIRMATION_OK_BUTTON);
   AssertAuthenticatedIdentityInActiveProfile(managed_identity);
 
   // Switch Sync account to |identity|.
   TapViewWithAccessibilityId(kSettingsAccountCellId);
   TapViewWithAccessibilityId(kSettingsAccountsSyncCellId);
   TapButtonWithAccessibilityLabel(identity.userEmail);
 
   // Accept warning for signout out of a managed identity, with synchronization
   // off due to an infinite spinner.
   SetEarlGreySynchronizationEnabled(NO);
-  WaitForMatcher(chrome_test_util::buttonWithAccessibilityLabelId(
+  WaitForMatcher(chrome_test_util::ButtonWithAccessibilityLabelId(
       IDS_IOS_MANAGED_SWITCH_ACCEPT_BUTTON));
   TapButtonWithLabelId(IDS_IOS_MANAGED_SWITCH_ACCEPT_BUTTON);
   SetEarlGreySynchronizationEnabled(YES);
 
   AssertAuthenticatedIdentityInActiveProfile(identity);
 
   // Close Settings.
   TapButtonWithLabelId(IDS_IOS_NAVIGATION_BAR_DONE_BUTTON);
 }
 
@@ skipping 41 matching lines @@
   ChromeIdentity* identity = GetFakeManagedIdentity();
   ios::FakeChromeIdentityService::GetInstanceFromChromeProvider()->AddIdentity(
       identity);
 
   // Sign in to |identity|.
   OpenSignInFromSettings();
   TapButtonWithAccessibilityLabel(identity.userEmail);
   TapButtonWithLabelId(IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_SIGNIN_BUTTON);
   // Synchronization off due to an infinite spinner.
   SetEarlGreySynchronizationEnabled(NO);
-  WaitForMatcher(chrome_test_util::buttonWithAccessibilityLabelId(
+  WaitForMatcher(chrome_test_util::ButtonWithAccessibilityLabelId(
       IDS_IOS_MANAGED_SIGNIN_ACCEPT_BUTTON));
   TapButtonWithLabelId(IDS_IOS_MANAGED_SIGNIN_ACCEPT_BUTTON);
   SetEarlGreySynchronizationEnabled(YES);
   TapButtonWithLabelId(IDS_IOS_ACCOUNT_CONSISTENCY_CONFIRMATION_OK_BUTTON);
   AssertAuthenticatedIdentityInActiveProfile(identity);
 
   // Go to Accounts Settings and tap the sign out button.
   TapViewWithAccessibilityId(kSettingsAccountCellId);
   const CGFloat scroll_displacement = 100.0;
   [[[EarlGrey selectElementWithMatcher:grey_accessibilityID(
@@ skipping 31 matching lines @@
   id<GREYMatcher> settings_link_matcher = grey_allOf(
       grey_accessibilityLabel(@"Settings"), grey_sufficientlyVisible(), nil);
   [[EarlGrey selectElementWithMatcher:settings_link_matcher]
       performAction:grey_tap()];
 
   // Close Settings.
   TapButtonWithLabelId(IDS_IOS_NAVIGATION_BAR_DONE_BUTTON);
 
   // All Settings should be gone and user signed in.
   id<GREYMatcher> settings_matcher =
-      chrome_test_util::staticTextWithAccessibilityLabelId(
+      chrome_test_util::StaticTextWithAccessibilityLabelId(
           IDS_IOS_SETTINGS_TITLE);
   [[EarlGrey selectElementWithMatcher:settings_matcher]
       assertWithMatcher:grey_notVisible()];
   AssertAuthenticatedIdentityInActiveProfile(identity);
 }
 
 // Opens the sign in screen and then cancel it by opening a new tab. Ensures
 // that the sign in screen is correctly dismissed. crbug.com/462200
 - (void)testSignInCancelIdentityPicker {
   // Add an identity to avoid arriving on the Add Account screen when opening
   // sign-in.
   ChromeIdentity* identity = GetFakeIdentity1();
   ios::FakeChromeIdentityService::GetInstanceFromChromeProvider()->AddIdentity(
       identity);
 
   OpenSignInFromSettings();
 
   // Open new tab to cancel sign-in.
   base::scoped_nsobject<OpenUrlCommand> command(
       [[OpenUrlCommand alloc] initWithURLFromChrome:GURL("about:blank")]);
   chrome_test_util::RunCommandWithActiveViewController(command);
 
   // Re-open the sign-in screen. If it wasn't correctly dismissed previously,
   // this will fail.
   OpenSignInFromSettings();
   id<GREYMatcher> signin_matcher =
-      chrome_test_util::staticTextWithAccessibilityLabelId(
+      chrome_test_util::StaticTextWithAccessibilityLabelId(
           IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_DESCRIPTION);
   [[EarlGrey selectElementWithMatcher:signin_matcher]
       assertWithMatcher:grey_sufficientlyVisible()];
 
   // Close sign-in screen and Settings.
   TapButtonWithLabelId(IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_SKIP_BUTTON);
   TapButtonWithLabelId(IDS_IOS_NAVIGATION_BAR_DONE_BUTTON);
 }
 
 // Opens the add account screen and then cancels it by opening a new tab.
 // Ensures that the add account screen is correctly dismissed. crbug.com/462200
 - (void)testSignInCancelAddAccount {
   // Add an identity to avoid arriving on the Add Account screen when opening
   // sign-in.
   ChromeIdentity* identity = GetFakeIdentity1();
   ios::FakeChromeIdentityService::GetInstanceFromChromeProvider()->AddIdentity(
       identity);
 
   OpenSignInFromSettings();
 
   // Open Add Account screen.
   id<GREYMatcher> add_account_matcher =
-      chrome_test_util::staticTextWithAccessibilityLabelId(
+      chrome_test_util::StaticTextWithAccessibilityLabelId(
           IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_ADD_ACCOUNT_BUTTON);
   [[EarlGrey selectElementWithMatcher:add_account_matcher]
       performAction:grey_tap()];
   [[GREYUIThreadExecutor sharedInstance] drainUntilIdle];
 
   // Open new tab to cancel sign-in.
   base::scoped_nsobject<OpenUrlCommand> command(
       [[OpenUrlCommand alloc] initWithURLFromChrome:GURL("about:blank")]);
   chrome_test_util::RunCommandWithActiveViewController(command);
 
   // Re-open the sign-in screen. If it wasn't correctly dismissed previously,
   // this will fail.
   OpenSignInFromSettings();
   id<GREYMatcher> signin_matcher =
-      chrome_test_util::staticTextWithAccessibilityLabelId(
+      chrome_test_util::StaticTextWithAccessibilityLabelId(
           IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_DESCRIPTION);
   [[EarlGrey selectElementWithMatcher:signin_matcher]
       assertWithMatcher:grey_sufficientlyVisible()];
 
   // Close sign-in screen and Settings.
   TapButtonWithLabelId(IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_SKIP_BUTTON);
   TapButtonWithLabelId(IDS_IOS_NAVIGATION_BAR_DONE_BUTTON);
 }
 
 // Starts an authentication flow and cancel it by opening a new tab. Ensures
@@ skipping 38 matching lines @@
 
   // Open new tab to cancel sign-in.
   base::scoped_nsobject<OpenUrlCommand> command(
       [[OpenUrlCommand alloc] initWithURLFromChrome:GURL("about:blank")]);
   chrome_test_util::RunCommandWithActiveViewController(command);
 
   // Re-open the sign-in screen. If it wasn't correctly dismissed previously,
   // this will fail.
   OpenSignInFromSettings();
   id<GREYMatcher> signin_matcher =
-      chrome_test_util::staticTextWithAccessibilityLabelId(
+      chrome_test_util::StaticTextWithAccessibilityLabelId(
           IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_DESCRIPTION);
   [[EarlGrey selectElementWithMatcher:signin_matcher]
       assertWithMatcher:grey_sufficientlyVisible()];
 
   // Close sign-in screen and Settings.
   TapButtonWithLabelId(IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_SKIP_BUTTON);
   TapButtonWithLabelId(IDS_IOS_NAVIGATION_BAR_DONE_BUTTON);
   AssertAuthenticatedIdentityInActiveProfile(nil);
 }
 
@@ skipping 28 matching lines @@
   id<GREYMatcher> all_bookmarks_matcher =
       grey_allOf(grey_kindOfClass(NSClassFromString(@"BookmarkMenuCell")),
                  grey_descendant(grey_text(topLevelFolderTitle)), nil);
   [[EarlGrey selectElementWithMatcher:all_bookmarks_matcher]
       performAction:grey_tap()];
 
   TapButtonWithLabelId(IDS_IOS_BOOKMARK_PROMO_SIGN_IN_BUTTON);
 
   // Assert sign-in screen was shown.
   id<GREYMatcher> signin_matcher =
-      chrome_test_util::staticTextWithAccessibilityLabelId(
+      chrome_test_util::StaticTextWithAccessibilityLabelId(
           IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_DESCRIPTION);
   [[EarlGrey selectElementWithMatcher:signin_matcher]
       assertWithMatcher:grey_sufficientlyVisible()];
 
   // Open new tab to cancel sign-in.
   base::scoped_nsobject<OpenUrlCommand> command(
       [[OpenUrlCommand alloc] initWithURLFromChrome:GURL("about:blank")]);
   chrome_test_util::RunCommandWithActiveViewController(command);
 
   // Re-open the sign-in screen. If it wasn't correctly dismissed previously,
@@ skipping 16 matching lines @@
       assertWithMatcher:grey_sufficientlyVisible()];
 
   // Close sign-in screen and Bookmarks.
   TapButtonWithLabelId(IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_SKIP_BUTTON);
   if (!IsIPadIdiom()) {
     TapButtonWithLabelId(IDS_IOS_NAVIGATION_BAR_DONE_BUTTON);
   }
 }
 
 @end