Make the information icon in the account chooser consume the mouse click.

chrome/browser/ui/cocoa/passwords/account_chooser_view_controller.mm

 // Copyright 2015 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/passwords/account_chooser_view_controller.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/mac/scoped_nsobject.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 21 matching lines @@
 namespace {
 
 // Standard height of one credential item. It can be bigger though in case the
 // text needs more vertical space than the avatar.
 constexpr CGFloat kCredentialHeight =
     kAvatarImageSize + 2 * kVerticalAvatarMargin;
 
 // Maximum height of the credential list. The unit is one row height.
 constexpr CGFloat kMaxHeightAccounts = 3.5;
 
+}  // namespace
+
+// An image view that consumes the mouse click.
+@interface InfoImageView : NSImageView
+@end
+
+@implementation InfoImageView
+- (void)mouseDown:(NSEvent*)theEvent {
+  if (theEvent.type != NSLeftMouseDown) {
+    [super mouseDown:theEvent];
+  }
+}
+@end
+
+namespace {
+
 NSImageView* IconForPSL(const NSRect& parentRect, const std::string& tooltip) {
   NSImage* image = gfx::NSImageFromImageSkia(gfx::CreateVectorIcon(
       gfx::VectorIconId::INFO_OUTLINE, gfx::kChromeIconGrey));
   NSRect rect = NSMakeRect(
       base::i18n::IsRTL() ? kFramePadding
                           : NSMaxX(parentRect) - kInfoIconSize - kFramePadding,
       NSMinY(parentRect) + (NSHeight(parentRect) - kInfoIconSize) / 2,
       kInfoIconSize, kInfoIconSize);
   base::scoped_nsobject<NSImageView> icon(
-      [[NSImageView alloc] initWithFrame:rect]);
+      [[InfoImageView alloc] initWithFrame:rect]);
   [icon setImage:image];
   [icon setToolTip:base::SysUTF8ToNSString(tooltip)];
   return icon.autorelease();
 }
 
 }  // namespace
 
 @interface AccountChooserViewController () {
   NSButton* cancelButton_;  // Weak.
   NSButton* signInButton_;  // Weak.
@@ skipping 222 matching lines @@
 
 - (NSArray*)credentialButtons {
   return credentialButtons_;
 }
 
 - (NSTextView*)titleView {
   return titleView_;
 }
 
 @end