Removing useless Win7 checks + standardize its use

content/browser/renderer_host/legacy_render_widget_host_win.cc

 // Copyright (c) 2014 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 "content/browser/renderer_host/legacy_render_widget_host_win.h"
 
 #include <objbase.h>
 
 #include <memory>
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/win/win_util.h"
-#include "base/win/windows_version.h"
 #include "content/browser/accessibility/browser_accessibility_manager_win.h"
 #include "content/browser/accessibility/browser_accessibility_state_impl.h"
 #include "content/browser/accessibility/browser_accessibility_win.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_aura.h"
 #include "content/public/common/content_switches.h"
 #include "ui/accessibility/platform/ax_fake_caret_win.h"
 #include "ui/base/view_prop.h"
 #include "ui/base/win/internal_constants.h"
 #include "ui/base/win/window_event_target.h"
@@ skipping 91 matching lines @@
   // assistive software that makes use of a fake caret is classified as a screen
   // reader, e.g. the built-in Windows Magnifier.
   ax_fake_caret_ = std::make_unique<ui::AXFakeCaretWin>(hwnd());
 }
 
 LegacyRenderWidgetHostHWND::~LegacyRenderWidgetHostHWND() {
   DCHECK(!::IsWindow(hwnd()));
 }
 
 bool LegacyRenderWidgetHostHWND::Init() {
-  if (base::win::GetVersion() >= base::win::VERSION_WIN7)
-    RegisterTouchWindow(hwnd(), TWF_WANTPALM);
+  RegisterTouchWindow(hwnd(), TWF_WANTPALM);
 
   HRESULT hr = ::CreateStdAccessibleObject(hwnd(), OBJID_WINDOW,
                                            IID_PPV_ARGS(&window_accessible_));
   DCHECK(SUCCEEDED(hr));
 
   AccessibilityMode mode =
       BrowserAccessibilityStateImpl::GetInstance()->accessibility_mode();
   if (!mode.has_mode(AccessibilityMode::kNativeAPIs)) {
     // Attempt to detect screen readers or other clients who want full
     // accessibility support, by seeing if they respond to this event.
@@ skipping 306 matching lines @@
       direct_manipulation_helper_->Activate(hwnd());
     } else if (window_pos->flags & SWP_HIDEWINDOW) {
       direct_manipulation_helper_->Deactivate(hwnd());
     }
   }
   SetMsgHandled(FALSE);
   return 0;
 }
 
 }  // namespace content