Remove opaque-frame-only code to reduce top resize border size by 1 px.

chrome/browser/ui/views/frame/opaque_browser_frame_view.cc

 // Copyright (c) 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/views/frame/opaque_browser_frame_view.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 43 matching lines @@
 #include "ui/views/window/window_shape.h"
 
 #if defined(OS_LINUX)
 #include "ui/views/controls/menu/menu_runner.h"
 #endif
 
 using content::WebContents;
 
 namespace {
 
-// While resize areas on Windows are normally the same size as the window
-// borders, our top area is shrunk by 1 px to make it easier to move the window
-// around with our thinner top grabbable strip.  (Incidentally, our side and
-// bottom resize areas don't match the frame border thickness either -- they
-// span the whole nonclient area, so there's no "dead zone" for the mouse.)
-const int kTopResizeAdjust = 1;
-
 // In the window corners, the resize areas don't actually expand bigger, but the
 // 16 px at the end of each edge triggers diagonal resizing.
 const int kResizeAreaCornerSize = 16;
 
 // The content edge images have a shadow built into them.
 const int kContentEdgeShadowThickness = 2;
 
 #if !defined(OS_WIN)
 // The icon never shrinks below 16 px on a side.
 const int kIconMinimumSize = 16;
@@ skipping 165 matching lines @@
     return HTMAXBUTTON;
   if (minimize_button_ && minimize_button_->visible() &&
       minimize_button_->GetMirroredBounds().Contains(point))
     return HTMINBUTTON;
 
   views::WidgetDelegate* delegate = frame()->widget_delegate();
   if (!delegate) {
     LOG(WARNING) << "delegate is null, returning safe default.";
     return HTCAPTION;
   }
-  int window_component = GetHTComponentForFrame(point, TopResizeHeight(),
-      NonClientBorderThickness(), kResizeAreaCornerSize, kResizeAreaCornerSize,
-      delegate->CanResize());
+  int window_component = GetHTComponentForFrame(
+      point, FrameBorderThickness(false), NonClientBorderThickness(),
+      kResizeAreaCornerSize, kResizeAreaCornerSize, delegate->CanResize());
   // Fall back to the caption if no other component matches.
   return (window_component == HTNOWHERE) ? HTCAPTION : window_component;
 }
 
 void OpaqueBrowserFrameView::GetWindowMask(const gfx::Size& size,
                                            gfx::Path* window_mask) {
   DCHECK(window_mask);
 
   if (layout_->IsTitleBarCondensed() || frame()->IsFullscreen())
     return;
@@ skipping 279 matching lines @@
       l10n_util::GetStringUTF16(accessibility_string_id));
   button->set_id(view_id);
   AddChildView(button);
   return button;
 }
 
 int OpaqueBrowserFrameView::FrameBorderThickness(bool restored) const {
   return layout_->FrameBorderThickness(restored);
 }
 
-int OpaqueBrowserFrameView::TopResizeHeight() const {
-  return FrameBorderThickness(false) - kTopResizeAdjust;
-}
-
 int OpaqueBrowserFrameView::NonClientBorderThickness() const {
   return layout_->NonClientBorderThickness();
 }
 
 gfx::Rect OpaqueBrowserFrameView::IconBounds() const {
   return layout_->IconBounds();
 }
 
 bool OpaqueBrowserFrameView::ShouldShowWindowTitleBar() const {
   // Do not show the custom title bar if the system title bar option is enabled.
@@ skipping 248 matching lines @@
                                                  SkColor color,
                                                  gfx::Canvas* canvas) const {
   gfx::Rect side(x - kClientEdgeThickness, y, kClientEdgeThickness,
                  bottom + kClientEdgeThickness - y);
   canvas->FillRect(side, color);
   canvas->FillRect(gfx::Rect(x, bottom, right - x, kClientEdgeThickness),
                    color);
   side.set_x(right);
   canvas->FillRect(side, color);
 }