Rename HostWindow to PlatformChromeClient

third_party/WebKit/Source/platform/scroll/Scrollbar.cpp

 /*
  * Copyright (C) 2004, 2006, 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "platform/scroll/Scrollbar.h"
 
 #include <algorithm>
-#include "platform/HostWindow.h"
+#include "platform/PlatformChromeClient.h"
 #include "platform/geometry/FloatRect.h"
 #include "platform/graphics/paint/CullRect.h"
 #include "platform/scroll/ScrollAnimatorBase.h"
 #include "platform/scroll/ScrollableArea.h"
 #include "platform/scroll/ScrollbarTheme.h"
 #include "public/platform/WebGestureEvent.h"
 #include "public/platform/WebMouseEvent.h"
 
 namespace blink {
 
 Scrollbar::Scrollbar(ScrollableArea* scrollable_area,
                      ScrollbarOrientation orientation,
                      ScrollbarControlSize control_size,
-                     HostWindow* host_window,
+                     PlatformChromeClient* chrome_client,
                      ScrollbarTheme* theme)
     : scrollable_area_(scrollable_area),
       orientation_(orientation),
       control_size_(control_size),
       theme_(theme ? *theme : ScrollbarTheme::GetTheme()),
-      host_window_(host_window),
+      chrome_client_(chrome_client),
       visible_size_(0),
       total_size_(0),
       current_pos_(0),
       drag_origin_(0),
       hovered_part_(kNoPart),
       pressed_part_(kNoPart),
       pressed_pos_(0),
       scroll_pos_(0),
       dragging_document_(false),
       document_drag_pos_(0),
       enabled_(true),
       scroll_timer_(scrollable_area->GetTimerTaskRunner(),
                     this,
                     &Scrollbar::AutoscrollTimerFired),
       elastic_overscroll_(0),
       track_needs_repaint_(true),
       thumb_needs_repaint_(true) {
   theme_.RegisterScrollbar(*this);
 
   // FIXME: This is ugly and would not be necessary if we fix cross-platform
   // code to actually query for scrollbar thickness and use it when sizing
   // scrollbars (rather than leaving one dimension of the scrollbar alone when
   // sizing).
   int thickness = theme_.ScrollbarThickness(control_size);
   theme_scrollbar_thickness_ = thickness;
-  if (host_window_)
-    thickness = host_window_->WindowToViewportScalar(thickness);
+  if (chrome_client_)
+    thickness = chrome_client_->WindowToViewportScalar(thickness);
   FrameViewBase::SetFrameRect(IntRect(0, 0, thickness, thickness));
 
   current_pos_ = ScrollableAreaCurrentPos();
 }
 
 Scrollbar::~Scrollbar() {
   theme_.UnregisterScrollbar(*this);
 }
 
 DEFINE_TRACE(Scrollbar) {
   visitor->Trace(scrollable_area_);
-  visitor->Trace(host_window_);
+  visitor->Trace(chrome_client_);
   FrameViewBase::Trace(visitor);
 }
 
 void Scrollbar::SetFrameRect(const IntRect& frame_rect) {
   if (frame_rect == this->FrameRect())
     return;
 
   FrameViewBase::SetFrameRect(frame_rect);
   SetNeedsPaintInvalidation(kAllParts);
   if (scrollable_area_)
@@ skipping 443 matching lines @@
     return;
   enabled_ = e;
   GetTheme().UpdateEnabledState(*this);
 
   ScrollbarPart invalid_parts = GetTheme().InvalidateOnEnabledChange();
   SetNeedsPaintInvalidation(invalid_parts);
 }
 
 int Scrollbar::ScrollbarThickness() const {
   int thickness = Orientation() == kHorizontalScrollbar ? Height() : Width();
-  if (!thickness || !host_window_)
+  if (!thickness || !chrome_client_)
     return thickness;
-  return host_window_->WindowToViewportScalar(theme_scrollbar_thickness_);
+  return chrome_client_->WindowToViewportScalar(theme_scrollbar_thickness_);
 }
 
 bool Scrollbar::IsOverlayScrollbar() const {
   return theme_.UsesOverlayScrollbars();
 }
 
 bool Scrollbar::ShouldParticipateInHitTesting() {
   // Non-overlay scrollbars should always participate in hit testing.
   if (!IsOverlayScrollbar())
     return true;
@@ skipping 75 matching lines @@
     invalid_parts = kAllParts;
   if (invalid_parts & ~kThumbPart)
     track_needs_repaint_ = true;
   if (invalid_parts & kThumbPart)
     thumb_needs_repaint_ = true;
   if (scrollable_area_)
     scrollable_area_->SetScrollbarNeedsPaintInvalidation(Orientation());
 }
 
 }  // namespace blink