Normalize top controls offset to (0, 1), Chromium-side.

content/renderer/gpu/render_widget_compositor.cc

 // Copyright (c) 2013 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/renderer/gpu/render_widget_compositor.h"
 
 #include <limits>
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 735 matching lines @@
 
 void RenderWidgetCompositor::setShowScrollBottleneckRects(bool show) {
   cc::LayerTreeDebugState debug_state = layer_tree_host_->debug_state();
   debug_state.show_touch_event_handler_rects = show;
   debug_state.show_wheel_event_handler_rects = show;
   debug_state.show_non_fast_scrollable_rects = show;
   layer_tree_host_->SetDebugState(debug_state);
 }
 
 void RenderWidgetCompositor::setTopControlsContentOffset(float offset) {
-  layer_tree_host_->SetTopControlsContentOffset(offset);
+  setTopControlsShownRatio(offset);
+}
+
+void RenderWidgetCompositor::setTopControlsShownRatio(float ratio) {
+  layer_tree_host_->SetTopControlsShownRatio(ratio);
 }
 
 void RenderWidgetCompositor::WillBeginMainFrame() {
   widget_->willBeginCompositorFrame();
 }
 
 void RenderWidgetCompositor::DidBeginMainFrame() {
 }
 
 void RenderWidgetCompositor::BeginMainFrame(const cc::BeginFrameArgs& args) {
@@ skipping 112 matching lines @@
   widget_->OnSwapBuffersAborted();
 }
 
 void RenderWidgetCompositor::RateLimitSharedMainThreadContext() {
   cc::ContextProvider* provider =
       compositor_deps_->GetSharedMainThreadContextProvider();
   provider->ContextGL()->RateLimitOffscreenContextCHROMIUM();
 }
 
 }  // namespace content