Prevent sending click event for non primary button

chrome/browser/ui/browser_browsertest.cc

 // Copyright 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.
 
 #include "chrome/browser/ui/browser.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
@@ skipping 2614 matching lines @@
   int modifiers = blink::WebInputEvent::MetaKey;
 #else
   int modifiers = blink::WebInputEvent::ControlKey;
 #endif
   modifiers |= blink::WebInputEvent::ShiftKey;
   blink::WebMouseEvent::Button button = blink::WebMouseEvent::ButtonLeft;
   WindowOpenDisposition disposition = NEW_FOREGROUND_TAB;
   RunTest(browser(), GetWindowOpenURL(), modifiers, button, disposition);
 }
 
-// Middle-clicks open in a background tab.
-#if defined(OS_LINUX)
-// http://crbug.com/396347
-#define MAYBE_WindowOpenMiddleClickTest DISABLED_WindowOpenMiddleClickTest
-#else
-#define MAYBE_WindowOpenMiddleClickTest WindowOpenMiddleClickTest
-#endif
-IN_PROC_BROWSER_TEST_F(ClickModifierTest, MAYBE_WindowOpenMiddleClickTest) {
-  int modifiers = 0;
-  blink::WebMouseEvent::Button button = blink::WebMouseEvent::ButtonMiddle;
-  WindowOpenDisposition disposition = NEW_BACKGROUND_TAB;
-  RunTest(browser(), GetWindowOpenURL(), modifiers, button, disposition);
-}
-
-// Shift-middle-clicks open in a foreground tab.
-IN_PROC_BROWSER_TEST_F(ClickModifierTest, WindowOpenShiftMiddleClickTest) {
-  int modifiers = blink::WebInputEvent::ShiftKey;
-  blink::WebMouseEvent::Button button = blink::WebMouseEvent::ButtonMiddle;
-  WindowOpenDisposition disposition = NEW_FOREGROUND_TAB;
-  RunTest(browser(), GetWindowOpenURL(), modifiers, button, disposition);
-}
-
 // Tests for clicking on normal links.
 
 IN_PROC_BROWSER_TEST_F(ClickModifierTest, HrefBasicClickTest) {
   int modifiers = 0;
   blink::WebMouseEvent::Button button = blink::WebMouseEvent::ButtonLeft;
   WindowOpenDisposition disposition = CURRENT_TAB;
   RunTest(browser(), GetHrefURL(), modifiers, button, disposition);
 }
 
 // TODO(ericu): Alt-click behavior on links is platform-dependent and not well
@@ skipping 603 matching lines @@
     Browser* browser = new Browser(params);
     gfx::Rect bounds = browser->window()->GetBounds();
 
     // Should be EXPECT_EQ, but this width is inconsistent across platforms.
     // See https://crbug.com/567925.
     EXPECT_GE(bounds.width(), 100);
     EXPECT_EQ(122, bounds.height());
     browser->window()->Close();
   }
 }