Remove 2 pointless NULL checks.

chrome/common/child_process_logging_mac.mm

 // Copyright (c) 2011 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.
 
 #include "chrome/common/child_process_logging.h"
 
 #import <Foundation/Foundation.h>
 
 #include "base/command_line.h"
 #include "base/string_number_conversions.h"
@@ skipping 158 matching lines @@
   NSString *key = [NSString stringWithUTF8String:kNumberOfViews];
   NSString *value = [NSString stringWithFormat:@"%d", number_of_views];
   set_key_func(key, value);
 }
 
 void SetNumberOfViews(int number_of_views) {
     SetNumberOfViewsImpl(number_of_views, SetCrashKeyValue);
 }
 
 void SetCommandLine(const CommandLine* command_line) {
-  DCHECK(SetCrashKeyValue);
-  DCHECK(ClearCrashKey);
   DCHECK(command_line);
-  if (!command_line || !SetCrashKeyValue || !ClearCrashKey)
+  if (!command_line)
     return;
 
   // These should match the corresponding strings in breakpad_win.cc.
   NSString* const kNumSwitchesKey = @"num-switches";
   NSString* const kSwitchKeyFormat = @"switch-%d";  // 1-based.
 
   // Note the total number of switches, not including the exec path.
   const CommandLine::StringVector& argv = command_line->argv();
   SetCrashKeyValue(kNumSwitchesKey,
                    [NSString stringWithFormat:@"%d", argv.size() - 1]);
 
   size_t key_i = 0;
   for (size_t i = 1; i < argv.size() && key_i < kMaxSwitches; ++i) {
     // TODO(shess): Skip boring switches.
     NSString* key = [NSString stringWithFormat:kSwitchKeyFormat, (key_i + 1)];
     NSString* value = base::SysUTF8ToNSString(argv[i]);
     SetCrashKeyValue(key, value);
     key_i++;
   }
 
   // Clear out any stale keys.
   for (; key_i < kMaxSwitches; ++key_i) {
     NSString* key = [NSString stringWithFormat:kSwitchKeyFormat, (key_i + 1)];
     ClearCrashKey(key);
   }
 }
 
 }  // namespace child_process_logging