Add display::GetDisplayNearestView

content/browser/renderer_host/render_widget_host_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/browser/renderer_host/render_widget_host_impl.h"
 
 #include <math.h>
 
 #include <set>
 #include <tuple>
@@ skipping 1404 matching lines @@
 
 void RenderWidgetHostImpl::NotifyScreenInfoChanged() {
   if (delegate_)
     delegate_->ScreenInfoChanged();
 
   // The resize message (which may not happen immediately) will carry with it
   // the screen info as well as the new size (if the screen has changed scale
   // factor).
   WasResized();
 
   if (touch_emulator_) {

[tapted, 2017/02/15 00:36:10]

nit: curlies not needed

[Jinsuk Kim, 2017/02/16 10:11:25]

Done.

-    touch_emulator_->SetDeviceScaleFactor(
-        view_.get() ? content::GetScaleFactorForView(view_.get()) : 1.0f);
+    touch_emulator_->SetDeviceScaleFactor(GetScaleFactorForView(view_.get()));
   }
 }
 
 void RenderWidgetHostImpl::GetSnapshotFromBrowser(
     const GetSnapshotFromBrowserCallback& callback) {
   int id = next_browser_snapshot_id_++;
 
 #if defined(OS_MACOSX)
   // MacOS version of underlying GrabViewSnapshot() blocks while
   // display/GPU are in a power-saving mode, so make sure display
@@ skipping 514 matching lines @@
 }
 
 void RenderWidgetHostImpl::OnSetCursor(const WebCursor& cursor) {
   SetCursor(cursor);
 }
 
 void RenderWidgetHostImpl::SetTouchEventEmulationEnabled(
     bool enabled, ui::GestureProviderConfigType config_type) {
   if (enabled) {
     if (!touch_emulator_) {
-      touch_emulator_.reset(new TouchEmulator(
-          this,
-          view_.get() ? content::GetScaleFactorForView(view_.get()) : 1.0f));
+      touch_emulator_.reset(

[tapted, 2017/02/15 00:36:10]

touch_emulator_ = base::MakeUnique<TouchEmulator>(..)

[Jinsuk Kim, 2017/02/16 10:11:24]

Done.

+          new TouchEmulator(this, GetScaleFactorForView(view_.get())));
     }
     touch_emulator_->Enable(config_type);
   } else {
     if (touch_emulator_)
       touch_emulator_->Disable();
   }
 }
 
 void RenderWidgetHostImpl::OnTextInputStateChanged(
     const TextInputState& params) {
@@ skipping 532 matching lines @@
     // different from the receiver's.
     file_system_file.url =
         GURL(storage::GetIsolatedFileSystemRootURIString(
                  file_system_url.origin(), filesystem_id, std::string())
                  .append(register_name));
     file_system_file.filesystem_id = filesystem_id;
   }
 }
 
 }  // namespace content