cros: Allow pin keyboard to keep focus without popping up the pin keyboard.

ui/keyboard/keyboard_util.cc

Index: ui/keyboard/keyboard_util.cc
diff --git a/ui/keyboard/keyboard_util.cc b/ui/keyboard/keyboard_util.cc
index 23404bc4f155d85673ef558ca67bc66e42c278fb..e531f991e7a676f5df9ca786d2eff5dd7fb558c9 100644
--- a/ui/keyboard/keyboard_util.cc
+++ b/ui/keyboard/keyboard_util.cc
@@ -44,6 +44,8 @@ void SendProcessKeyEvent(ui::EventType type,
 base::LazyInstance<base::Time> g_keyboard_load_time_start =
     LAZY_INSTANCE_INITIALIZER;
 
+bool g_force_disable_keyboard = false;

[bshe, 2016/11/11 17:33:36]

Is this only suppose to be changed by ScopedKeyboardDisabler? Is so, it is
probably safer to put it into scoped_keyboard_disabler so you don't need to make
SetForceDisableVirtualKeyboard a public method.

[sammiequon, 2016/11/11 21:20:58]

I'm not sure how to go about implementing this. If g_force_disable_keyboard is
removed, how do u get IsKeyboardEnabled() to check whether or not to force
disable. Thanks for any clarification.

[bshe, 2016/11/11 21:44:16]

I mean move g_force_disable_keyboard into scoped_keyboard_disabler.cc and create
a getter in the file so IsKeyboardEnabled can access. The difference is that we
don't
need to have a public setter. This feels slightly safer if you don't intent to
let other file set the
value of g_force_disable_keyboard.
It is not blocking though, so if you want to submit this CL as it is. I am fine
with it.

[sammiequon, 2016/11/11 23:14:27]

Thanks. Done.

+
 bool g_accessibility_keyboard_enabled = false;
 
 bool g_hotrod_keyboard_enabled = false;
@@ -72,6 +74,14 @@ gfx::Rect FullWidthKeyboardBoundsFromRootBounds(const gfx::Rect& root_bounds,
       keyboard_height);
 }
 
+void SetForceDisableVirtualKeyboard(bool disable) {
+  g_force_disable_keyboard = disable;
+}
+
+bool GetForceDisableVirtualKeyboard() {
+  return g_force_disable_keyboard;
+}
+
 void SetAccessibilityKeyboardEnabled(bool enabled) {
   g_accessibility_keyboard_enabled = enabled;
 }
@@ -111,6 +121,9 @@ std::string GetKeyboardLayout() {
 }
 
 bool IsKeyboardEnabled() {
+  // Blocks keyboard from showing up regardless of other settings.
+  if (g_force_disable_keyboard)
+    return false;
   // Accessibility setting prioritized over policy setting.
   if (g_accessibility_keyboard_enabled)
     return true;