Make EarlGrey matchers compliant with Chromium style.

ios/chrome/test/earl_grey/chrome_earl_grey_ui.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 "ios/chrome/test/earl_grey/chrome_earl_grey_ui.h"
 
 #import "ios/chrome/browser/ui/tools_menu/tools_menu_view_controller.h"
 #import "ios/chrome/browser/ui/uikit_ui_util.h"
 #import "ios/chrome/test/app/chrome_test_util.h"
 #include "ios/chrome/test/app/navigation_test_util.h"
 #import "ios/chrome/test/earl_grey/chrome_matchers.h"
 #import "ios/testing/wait_util.h"
 #import "ios/web/public/test/earl_grey/js_test_util.h"
 #import "ios/web/public/test/earl_grey/web_view_matchers.h"
 
 using testing::WaitUntilConditionOrTimeout;
 using testing::kWaitForPageLoadTimeout;
 
 @implementation ChromeEarlGreyUI
 
 + (void)openToolsMenu {
   // TODO(crbug.com/639524): Add logic to ensure the app is in the correct
   // state, for example DCHECK if no tabs are displayed.
   [[[EarlGrey
-      selectElementWithMatcher:grey_allOf(chrome_test_util::toolsMenuButton(),
+      selectElementWithMatcher:grey_allOf(chrome_test_util::ToolsMenuButton(),
                                           grey_sufficientlyVisible(), nil)]
          usingSearchAction:grey_swipeSlowInDirection(kGREYDirectionDown)
-      onElementWithMatcher:web::webViewScrollView(
+      onElementWithMatcher:web::WebViewScrollView(
                                chrome_test_util::GetCurrentWebState())]
       performAction:grey_tap()];
   // TODO(crbug.com/639517): Add webViewScrollView matcher so we don't have
   // to always find it.
 }
 
 + (void)openNewTab {
   [ChromeEarlGreyUI openToolsMenu];
   id<GREYMatcher> newTabButtonMatcher =
       grey_accessibilityID(kToolsMenuNewTabId);
   [[EarlGrey selectElementWithMatcher:newTabButtonMatcher]
       performAction:grey_tap()];
   [[GREYUIThreadExecutor sharedInstance] drainUntilIdle];
 }
 
 + (void)openNewIncognitoTab {
   [ChromeEarlGreyUI openToolsMenu];
   id<GREYMatcher> newIncognitoTabMatcher =
       grey_accessibilityID(kToolsMenuNewIncognitoTabId);
   [[EarlGrey selectElementWithMatcher:newIncognitoTabMatcher]
       performAction:grey_tap()];
   [[GREYUIThreadExecutor sharedInstance] drainUntilIdle];
 }
 
 + (void)reload {
   // On iPhone Reload button is a part of tools menu, so open it.
   if (IsCompact()) {
     [self openToolsMenu];
   }
-  [[EarlGrey selectElementWithMatcher:chrome_test_util::reloadButton()]
+  [[EarlGrey selectElementWithMatcher:chrome_test_util::ReloadButton()]
       performAction:grey_tap()];
 }
 
 + (void)openShareMenu {
   if (IsCompact()) {
     [ChromeEarlGreyUI openToolsMenu];
   }
-  [[EarlGrey selectElementWithMatcher:chrome_test_util::shareButton()]
+  [[EarlGrey selectElementWithMatcher:chrome_test_util::ShareButton()]
       performAction:grey_tap()];
 }
 
 @end