Cross-process frames should be notified of device scale factor changes.

content/browser/web_contents/web_contents_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/web_contents/web_contents_view_aura.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/auto_reset.h"
@@ skipping 27 matching lines @@
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/browser/web_contents_view_delegate.h"
 #include "content/public/browser/web_drag_dest_delegate.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/drop_data.h"
 #include "net/base/filename_util.h"
+#include "third_party/WebKit/public/platform/WebScreenInfo.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/client/screen_position_client.h"
 #include "ui/aura/client/window_tree_client.h"
 #include "ui/aura/env.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_observer.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/aura/window_tree_host_observer.h"
 #include "ui/base/clipboard/clipboard.h"
@@ skipping 560 matching lines @@
 gfx::NativeView WebContentsViewAura::GetContentNativeView() const {
   RenderWidgetHostView* rwhv = web_contents_->GetRenderWidgetHostView();
   return rwhv ? rwhv->GetNativeView() : NULL;
 }
 
 gfx::NativeWindow WebContentsViewAura::GetTopLevelNativeWindow() const {
   gfx::NativeWindow window = window_->GetToplevelWindow();
   return window ? window : delegate_->GetNativeWindow();
 }
 
+namespace {
+
+void GetScreenInfoForWindow(blink::WebScreenInfo* results,
+                            aura::Window* window) {
+  display::Screen* screen = display::Screen::GetScreen();
+  const display::Display display = window
+                                       ? screen->GetDisplayNearestWindow(window)
+                                       : screen->GetPrimaryDisplay();
+  results->rect = display.bounds();
+  results->availableRect = display.work_area();
+  // TODO(derat|oshima): Don't hardcode this. Get this from display object.
+  results->depth = 24;
+  results->depthPerComponent = 8;
+  results->deviceScaleFactor = display.device_scale_factor();
+
+  // The Display rotation and the WebScreenInfo orientation are not the same
+  // angle. The former is the physical display rotation while the later is the
+  // rotation required by the content to be shown properly on the screen, in
+  // other words, relative to the physical display.
+  results->orientationAngle = display.RotationAsDegree();
+  if (results->orientationAngle == 90)
+    results->orientationAngle = 270;
+  else if (results->orientationAngle == 270)
+    results->orientationAngle = 90;
+
+  results->orientationType =
+      RenderWidgetHostViewBase::GetOrientationTypeForDesktop(display);
+}
+
+}  // namespace
+
+// Static.
+void WebContentsView::GetDefaultScreenInfo(blink::WebScreenInfo* results) {
+  GetScreenInfoForWindow(results, NULL);
+}
+
+void WebContentsViewAura::GetScreenInfo(
+    blink::WebScreenInfo* web_screen_info) const {
+  GetScreenInfoForWindow(web_screen_info, window_.get());
+}
+
 void WebContentsViewAura::GetContainerBounds(gfx::Rect *out) const {
   *out = window_->GetBoundsInScreen();
 }
 
 void WebContentsViewAura::SizeContents(const gfx::Size& size) {
   gfx::Rect bounds = window_->bounds();
   if (bounds.size() != size) {
     bounds.set_size(size);
     window_->SetBounds(bounds);
   } else {
@@ skipping 520 matching lines @@
                                         bool allow_multiple_selection) {
   NOTIMPLEMENTED() << " show " << items.size() << " menu items";
 }
 
 void WebContentsViewAura::HidePopupMenu() {
   NOTIMPLEMENTED();
 }
 #endif
 
 }  // namespace content