[Mac] Fix hacker_case problems in Omnibox source.

chrome/browser/ui/cocoa/omnibox/omnibox_popup_matrix.mm

 // Copyright 2013 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 "chrome/browser/ui/cocoa/omnibox/omnibox_popup_matrix.h"
 
 #include "base/logging.h"
 #include "base/mac/foundation_util.h"
 #import "chrome/browser/ui/cocoa/omnibox/omnibox_popup_cell.h"
 #include "chrome/browser/ui/cocoa/omnibox/omnibox_popup_view_mac.h"
@@ skipping 15 matching lines @@
 @end
 
 @implementation OmniboxPopupTableController
 
 - (instancetype)initWithMatchResults:(const AutocompleteResult&)result
                            tableView:(OmniboxPopupMatrix*)tableView
                            popupView:(const OmniboxPopupViewMac&)popupView
                          answerImage:(NSImage*)answerImage {
   base::scoped_nsobject<NSMutableArray> array([[NSMutableArray alloc] init]);
   BOOL isDarkTheme = [tableView hasDarkTheme];
-  CGFloat max_match_contents_width = 0.0f;
+  CGFloat maxMatchContentsWidth = 0.0f;
   CGFloat contentsOffset = -1.0f;
   for (const AutocompleteMatch& match : result) {
     if (match.type == AutocompleteMatchType::SEARCH_SUGGEST_TAIL &&
         contentsOffset < 0.0f)
       contentsOffset = [OmniboxPopupCell computeContentsOffset:match];
     base::scoped_nsobject<OmniboxPopupCellData> cellData(
         [[OmniboxPopupCellData alloc]
              initWithMatch:match
             contentsOffset:contentsOffset
                      image:popupView.ImageForMatch(match)
                answerImage:(match.answer ? answerImage : nil)
               forDarkTheme:isDarkTheme]);
     if (isDarkTheme)
       [cellData setIncognitoImage:popupView.ImageForMatch(match)];
     [array addObject:cellData];
     if (match.type == AutocompleteMatchType::SEARCH_SUGGEST_TAIL) {
-      max_match_contents_width =
-          std::max(max_match_contents_width, [cellData getMatchContentsWidth]);
+      maxMatchContentsWidth =
+          std::max(maxMatchContentsWidth, [cellData getMatchContentsWidth]);
     }
   }
 
-  [tableView setMaxMatchContentsWidth:max_match_contents_width];
+  [tableView setMaxMatchContentsWidth:maxMatchContentsWidth];
   return [self initWithArray:array];
 }
 
 - (instancetype)initWithArray:(NSArray*)array {
   if ((self = [super init])) {
     hoveredIndex_ = -1;
     array_.reset([array copy]);
   }
   return self;
 }
@@ skipping 44 matching lines @@
     NSRect rowRect = [tableView rectOfColumn:0];
     OmniboxPopupCellData* cellData =
         base::mac::ObjCCastStrict<OmniboxPopupCellData>(
             [array_ objectAtIndex:row]);
     // Subtract any Material Design padding and/or icon.
     rowRect.size.width = [OmniboxPopupCell getContentAreaWidth:rowRect] -
                          [matrix contentLeftPadding];
     NSAttributedString* text = [cellData description];
     // Provide no more than 3 lines of space.
     rowRect.size.height =
-        std::min(3, [cellData max_lines]) * [text size].height;
+        std::min(3, [cellData maxLines]) * [text size].height;
     NSRect textRect =
         [text boundingRectWithSize:rowRect.size
                            options:NSStringDrawingUsesLineFragmentOrigin |
                                    NSStringDrawingTruncatesLastVisibleLine];
     // Add a little padding or it looks cramped.
     int heightProvided = textRect.size.height + 2;
     height += heightProvided;
   }
   return height;
 }
@@ skipping 180 matching lines @@
   [self selectRowIndex:row];
   if (row != -1) {
     DCHECK(observer_);
     observer_->OnMatrixRowSelected(self, row);
     return YES;
   }
   return NO;
 }
 
 @end