Fix main thread top controls scrolling to mirror CC.

content/renderer/render_view_impl.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/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/auto_reset.h"
@@ skipping 609 matching lines @@
       page_id_(-1),
       next_page_id_(params.next_page_id),
       history_list_offset_(-1),
       history_list_length_(0),
       frames_in_progress_(0),
       target_url_status_(TARGET_NONE),
       uses_temporary_zoom_level_(false),
 #if defined(OS_ANDROID)
       top_controls_constraints_(TOP_CONTROLS_STATE_BOTH),
 #endif
+      top_controls_shrink_blink_size_(false),
+      top_controls_height_(0.f),
       has_focus_(false),
       has_scrolled_focused_editable_node_into_rect_(false),
       main_render_frame_(nullptr),
       frame_widget_(nullptr),
       speech_recognition_dispatcher_(NULL),
       mouse_lock_dispatcher_(NULL),
 #if defined(OS_ANDROID)
       expected_content_intent_id_(0),
 #endif
 #if defined(ENABLE_PLUGINS)
@@ skipping 1951 matching lines @@
   // TODO(port): we don't support theming on non-Windows platforms yet
   NOTIMPLEMENTED();
 #endif
 }
 
 void RenderViewImpl::OnMoveOrResizeStarted() {
   if (webview())
     webview()->hidePopups();
 }
 
+void RenderViewImpl::ResizeWebWidget(const ResizeParams& params) {
+    bool resized = size_ != params.new_size ||
+                   physical_backing_size_ != params.physical_backing_size ||
+                   top_controls_height_ != params.top_controls_height;
+
+    size_ = params.new_size;
+    physical_backing_size_ = params.physical_backing_size;
+    top_controls_shrink_blink_size_ = params.top_controls_shrink_blink_size;
+    top_controls_height_ = params.top_controls_height;
+
+    gfx::Size new_widget_size = size_;
+    if (IsUseZoomForDSFEnabled()) {
+      new_widget_size = gfx::ScaleToCeiledSize(new_widget_size,
+                                               GetOriginalDeviceScaleFactor());
+    }
+
+    if (resized)
+        webview()->resizeWithTopControls(new_widget_size,
+                                         top_controls_height_,
+                                         top_controls_shrink_blink_size_);
+}
+
 void RenderViewImpl::OnResize(const ResizeParams& params) {
   TRACE_EVENT0("renderer", "RenderViewImpl::OnResize");
   if (webview()) {
     webview()->hidePopups();
     if (send_preferred_size_changes_) {
       webview()->mainFrame()->setCanHaveScrollbars(
           ShouldDisplayScrollbars(params.new_size.width(),
                                   params.new_size.height()));
     }
     if (display_mode_ != params.display_mode) {
@@ skipping 712 matching lines @@
   if (IsUseZoomForDSFEnabled()) {
     webview()->setZoomFactorForDeviceScaleFactor(device_scale_factor_);
   } else {
     webview()->setDeviceScaleFactor(device_scale_factor_);
   }
   webview()->settings()->setPreferCompositingToLCDTextEnabled(
       PreferCompositingToLCDText(compositor_deps_, device_scale_factor_));
 }
 
 }  // namespace content