Disabled a few more failing perf tests

ios/chrome/browser/ui/omnibox_perftest.mm

 // Copyright (c) 2012 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 <UIKit/UIKit.h>
 
 #include <memory>
 
 #include "base/memory/ptr_util.h"
 #import "base/test/ios/wait_util.h"
@@ skipping 197 matching lines @@
   std::unique_ptr<WebStateList> web_state_list_;
   std::unique_ptr<ToolbarModelDelegateIOS> toolbar_model_delegate_;
   std::unique_ptr<ToolbarModelIOS> toolbar_model_ios_;
   WebToolbarController* toolbar_;
   UIWindow* window_;
   KeyboardAppearanceListener* keyboard_listener_;
 };
 
 // Measures the amount of time it takes the Omnibox text field to activate
 // the on-screen keyboard.
-TEST_F(OmniboxPerfTest, TestTextFieldDidBeginEditing) {
+// TODO(crbug.com/717300): Test disabled because of a DCHECK in Reading List.
+TEST_F(OmniboxPerfTest, DISABLED_TestTextFieldDidBeginEditing) {
   LogPerfTiming("Keyboard preload", PreLoadKeyboard());
   OmniboxTextFieldIOS* textField = (OmniboxTextFieldIOS*)FindViewByClass(
       [toolbar_ view], [OmniboxTextFieldIOS class]);
 
   // Time how long it takes to "focus" on omnibox.
   RepeatTimedRuns("Begin editing",
                   ^base::TimeDelta(int index) {
                     return EnableKeyboard(textField);
                   },
                   ^() {
                     DisableKeyboard(textField);
                   });
 }
 
 // Measures the amount of time it takes to type in the first character
 // into the Omnibox.
-TEST_F(OmniboxPerfTest, TestTypeOneCharInTextField) {
+// TODO(crbug.com/717309): Test disabled because of nullptr dereferencing.
+TEST_F(OmniboxPerfTest, DISABLED_TestTypeOneCharInTextField) {
   OmniboxTextFieldIOS* textField = (OmniboxTextFieldIOS*)FindViewByClass(
       [toolbar_ view], [OmniboxTextFieldIOS class]);
   RepeatTimedRuns("Type first character",
                   ^base::TimeDelta(int index) {
                     EnableKeyboard(textField);
                     return TimeInsertText(textField, @"G");
                   },
                   ^() {
                     [textField setText:@""];
                     DisableKeyboard(textField);
                   });
 }
 
 // Measures the amount of time it takes to type in the word "google" one
 // letter at a time.
-TEST_F(OmniboxPerfTest, TestTypingInTextField) {
+// TODO(crbug.com/717309): Test disabled because of nullptr dereferencing.
+TEST_F(OmniboxPerfTest, DISABLED_TestTypingInTextField) {
   OmniboxTextFieldIOS* textField = (OmniboxTextFieldIOS*)FindViewByClass(
       [toolbar_ view], [OmniboxTextFieldIOS class]);
   // The characters to type into the omnibox text field.
   NSArray* inputCharacters =
       [NSArray arrayWithObjects:@"g", @"o", @"o", @"g", @"l", @"e", nil];
   RepeatTimedRuns(
       "Typing",
       ^base::TimeDelta(int index) {
         EnableKeyboard(textField);
         NSMutableString* logMessage = [NSMutableString string];
         base::TimeDelta elapsed;
         for (NSString* input in inputCharacters) {
           base::TimeDelta inputElapsed = TimeInsertText(textField, input);
           [logMessage appendFormat:@"%@'%@':%.0f",
                                    [logMessage length] ? @" " : @"", input,
                                    inputElapsed.InMillisecondsF()];
           elapsed += inputElapsed;
         }
         NSLog(@"%2d: %@", index, logMessage);
         return elapsed;
       },
       ^() {
         [textField setText:@""];
         DisableKeyboard(textField);
       });
 }
 }