Scroll offset pinning and content size notifications were only used for the Mac overlay navigation …

content/browser/renderer_host/render_widget_host_view_android.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 "content/browser/renderer_host/render_widget_host_view_android.h"
 
 #include <android/bitmap.h>
 
 #include "base/android/sys_utils.h"
 #include "base/basictypes.h"
@@ skipping 1071 matching lines @@
   }
   return handle;
 }
 
 void RenderWidgetHostViewAndroid::ProcessAckedTouchEvent(
     const TouchEventWithLatencyInfo& touch, InputEventAckState ack_result) {
   const bool event_consumed = ack_result == INPUT_EVENT_ACK_STATE_CONSUMED;
   gesture_provider_.OnTouchEventAck(event_consumed);
 }
 
-void RenderWidgetHostViewAndroid::SetScrollOffsetPinning(
-    bool is_pinned_to_left, bool is_pinned_to_right) {
-  // intentionally empty, like RenderWidgetHostViewViews
-}
-
 void RenderWidgetHostViewAndroid::GestureEventAck(
     const blink::WebGestureEvent& event,
     InputEventAckState ack_result) {
   if (content_view_core_)
     content_view_core_->OnGestureEventAck(event, ack_result);
 }
 
 InputEventAckState RenderWidgetHostViewAndroid::FilterInputEvent(
     const blink::WebInputEvent& input_event) {
   if (content_view_core_ &&
@@ skipping 333 matching lines @@
   results->availableRect = display.work_area();
   results->deviceScaleFactor = display.device_scale_factor();
   results->orientationAngle = display.RotationAsDegree();
   gfx::DeviceDisplayInfo info;
   results->depth = info.GetBitsPerPixel();
   results->depthPerComponent = info.GetBitsPerComponent();
   results->isMonochrome = (results->depthPerComponent == 0);
 }
 
 } // namespace content