Rename HostWindow to PlatformChromeClient

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

 /*
  * Copyright (c) 2010, Google Inc. All rights reserved.
  * Copyright (C) 2008, 2011 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 13 matching lines @@
  * 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/ScrollableArea.h"
 
-#include "platform/HostWindow.h"
+#include "platform/PlatformChromeClient.h"
 #include "platform/graphics/GraphicsLayer.h"
 #include "platform/instrumentation/tracing/TraceEvent.h"
 #include "platform/scroll/MainThreadScrollingReason.h"
 #include "platform/scroll/ProgrammaticScrollAnimator.h"
 #include "platform/scroll/ScrollbarTheme.h"
 
 static const int kPixelsPerLineStep = 40;
 static const float kMinFractionToStepWhenPaging = 0.875f;
 
 namespace blink {
 
-int ScrollableArea::PixelsPerLineStep(HostWindow* host) {
+int ScrollableArea::PixelsPerLineStep(PlatformChromeClient* host) {
   if (!host)
     return kPixelsPerLineStep;
   return host->WindowToViewportScalar(kPixelsPerLineStep);
 }
 
 float ScrollableArea::MinFractionToStepWhenPaging() {
   return kMinFractionToStepWhenPaging;
 }
 
 int ScrollableArea::MaxOverlapBetweenPages() {
@@ skipping 551 matching lines @@
       .ExpandedTo(MinimumScrollOffsetInt());
 }
 
 ScrollOffset ScrollableArea::ClampScrollOffset(
     const ScrollOffset& scroll_offset) const {
   return scroll_offset.ShrunkTo(MaximumScrollOffset())
       .ExpandedTo(MinimumScrollOffset());
 }
 
 int ScrollableArea::LineStep(ScrollbarOrientation) const {
-  return PixelsPerLineStep(GetHostWindow());
+  return PixelsPerLineStep(GetChromeClient());
 }
 
 int ScrollableArea::PageStep(ScrollbarOrientation orientation) const {
   IntRect visible_rect = VisibleContentRect(kIncludeScrollbars);
   int length = (orientation == kHorizontalScrollbar) ? visible_rect.Width()
                                                      : visible_rect.Height();
   int min_page_step =
       static_cast<float>(length) * MinFractionToStepWhenPaging();
   int page_step = std::max(min_page_step, length - MaxOverlapBetweenPages());
 
@@ skipping 42 matching lines @@
                                          offset.y() - ScrollOrigin().Y());
   SetScrollOffset(new_offset, kCompositorScroll);
 }
 
 DEFINE_TRACE(ScrollableArea) {
   visitor->Trace(scroll_animator_);
   visitor->Trace(programmatic_scroll_animator_);
 }
 
 }  // namespace blink