Specify a default display UI scale to reset the zoom to

ui/display/manager/managed_display_info.cc

Index: ui/display/manager/managed_display_info.cc
diff --git a/ui/display/manager/managed_display_info.cc b/ui/display/manager/managed_display_info.cc
index f92021b833cd720d666a5b5b70810457b8aa7ddf..04855290a19e72b79a5446d17682a566f3afa9a5 100644
--- a/ui/display/manager/managed_display_info.cc
+++ b/ui/display/manager/managed_display_info.cc
@@ -79,6 +79,7 @@ ManagedDisplayMode::ManagedDisplayMode()
     : refresh_rate_(0.0f),
       is_interlaced_(false),
       native_(false),
+      is_default_(false),

[oshima, 2016/10/19 21:04:06]

just initialize it in line because it's always false.

[afakhry, 2016/10/24 20:21:46]

Done.

       ui_scale_(1.0f),
       device_scale_factor_(1.0f) {}
 
@@ -87,6 +88,7 @@ ManagedDisplayMode::ManagedDisplayMode(const gfx::Size& size)
       refresh_rate_(0.0f),
       is_interlaced_(false),
       native_(false),
+      is_default_(false),
       ui_scale_(1.0f),
       device_scale_factor_(1.0f) {}
 
@@ -98,6 +100,7 @@ ManagedDisplayMode::ManagedDisplayMode(const gfx::Size& size,
       refresh_rate_(refresh_rate),
       is_interlaced_(is_interlaced),
       native_(native),
+      is_default_(false),
       ui_scale_(1.0f),
       device_scale_factor_(1.0f) {}
 
@@ -113,6 +116,7 @@ ManagedDisplayMode::ManagedDisplayMode(const gfx::Size& size,
       refresh_rate_(refresh_rate),
       is_interlaced_(is_interlaced),
       native_(native),
+      is_default_(false),
       ui_scale_(ui_scale),
       device_scale_factor_(device_scale_factor) {}