Fix the coordinates for touch selection.

content/browser/renderer_host/render_widget_host_view_aura.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_aura.h"
 
 #include <set>
 #include <utility>
 
 #include "base/auto_reset.h"
@@ skipping 26 matching lines @@
 #include "content/browser/renderer_host/input/web_input_event_util.h"
 #include "content/browser/renderer_host/overscroll_controller.h"
 #include "content/browser/renderer_host/render_view_host_delegate.h"
 #include "content/browser/renderer_host/render_view_host_delegate_view.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_delegate.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_input_event_router.h"
 #include "content/browser/renderer_host/ui_events_helper.h"
 #include "content/browser/renderer_host/web_input_event_aura.h"
+#include "content/common/content_switches_internal.h"
 #include "content/common/gpu/client/gl_helper.h"
 #include "content/common/gpu/gpu_messages.h"
 #include "content/common/site_isolation_policy.h"
 #include "content/common/view_messages.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/overscroll_configuration.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host_view_frame_subscriber.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/common/content_switches.h"
@@ skipping 1145 matching lines @@
 void RenderWidgetHostViewAura::OnSwapCompositorFrame(
     uint32_t output_surface_id,
     scoped_ptr<cc::CompositorFrame> frame) {
   TRACE_EVENT0("content", "RenderWidgetHostViewAura::OnSwapCompositorFrame");
 
   last_scroll_offset_ = frame->metadata.root_scroll_offset;
   if (!frame->delegated_frame_data)
     return;
 
   cc::ViewportSelection selection = frame->metadata.selection;
+  if (IsUseZoomForDSFEnabled()) {
+    float viewportToDIPScale = 1.0f / current_device_scale_factor_;
+    selection.start.edge_top.Scale(viewportToDIPScale);
+    selection.start.edge_bottom.Scale(viewportToDIPScale);
+    selection.end.edge_top.Scale(viewportToDIPScale);
+    selection.end.edge_bottom.Scale(viewportToDIPScale);
+  }
 
   delegated_frame_host_->SwapDelegatedFrame(output_surface_id,
                                             std::move(frame));
   SelectionUpdated(selection.is_editable, selection.is_empty_text_form_control,
                    ConvertSelectionBound(selection.start),
                    ConvertSelectionBound(selection.end));
 }
 
 void RenderWidgetHostViewAura::ClearCompositorFrame() {
   delegated_frame_host_->ClearDelegatedFrame();
@@ skipping 1863 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewBase, public:
 
 // static
 void RenderWidgetHostViewBase::GetDefaultScreenInfo(WebScreenInfo* results) {
   GetScreenInfoForWindow(results, NULL);
 }
 
 }  // namespace content