Add OnDisplayMetricsChanged in DisplayObserver.

content/browser/renderer_host/render_widget_host_view_aura.cc

Index: content/browser/renderer_host/render_widget_host_view_aura.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_aura.cc b/content/browser/renderer_host/render_widget_host_view_aura.cc
index 8095659d5046e27b2cfe3d27c3d0ab0ba20925bd..dc525a6fa4d224d3618126cffe48fb4eaa5facf8 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.cc
+++ b/content/browser/renderer_host/render_widget_host_view_aura.cc
@@ -1531,16 +1531,6 @@ void RenderWidgetHostViewAura::OnCandidateWindowHidden() {
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewAura, gfx::DisplayObserver implementation:
 
-void RenderWidgetHostViewAura::OnDisplayBoundsChanged(
-    const gfx::Display& display) {
-  gfx::Screen* screen = gfx::Screen::GetScreenFor(window_);
-  if (display.id() == screen->GetDisplayNearestWindow(window_).id()) {
-    UpdateScreenInfo(window_);
-    current_cursor_.SetDisplayInfo(display);
-    UpdateCursorIfOverSelf();
-  }
-}
-
 void RenderWidgetHostViewAura::OnDisplayAdded(
     const gfx::Display& new_display) {
 }
@@ -1549,6 +1539,18 @@ void RenderWidgetHostViewAura::OnDisplayRemoved(
     const gfx::Display& old_display) {
 }
 
+void RenderWidgetHostViewAura::OnDisplayMetricsChanged(
+    const gfx::Display& display,
+    DisplayObserver::DisplayMetrics metrics) {
+  // The screen info should be updated regardless of the metric change.
+  gfx::Screen* screen = gfx::Screen::GetScreenFor(window_);
+  if (display.id() == screen->GetDisplayNearestWindow(window_).id()) {
+    UpdateScreenInfo(window_);
+    current_cursor_.SetDisplayInfo(display);
+    UpdateCursorIfOverSelf();
+  }
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewAura, aura::WindowDelegate implementation: