Implement sync of keyboard layout between Ozone and Wayland clients

ui/base/ime/chromeos/ime_keyboard.h

Index: ui/base/ime/chromeos/ime_keyboard.h
diff --git a/ui/base/ime/chromeos/ime_keyboard.h b/ui/base/ime/chromeos/ime_keyboard.h
index 80615bb6c8b1b69137d4be642caf92c71d3ce029..08365f6b80a2d888b2e2bdf1b1c15f0488a42a87 100644
--- a/ui/base/ime/chromeos/ime_keyboard.h
+++ b/ui/base/ime/chromeos/ime_keyboard.h
@@ -39,6 +39,7 @@ class UI_BASE_IME_EXPORT ImeKeyboard {
    public:
     // Called when the caps lock state has changed.
     virtual void OnCapsLockChanged(bool enabled) = 0;

[reveman, 2017/06/09 14:53:19]

blank line after this

[jclinton, 2017/06/09 16:36:04]

Done.

+    virtual void OnLayoutChanged(const std::string& layout_name) = 0;

[reveman, 2017/06/09 14:53:19]

Add a short comment above this. "// Called when the layout state has changed."

[jclinton, 2017/06/09 16:36:03]

Done.

   };
 
   ImeKeyboard();
@@ -49,8 +50,7 @@ class UI_BASE_IME_EXPORT ImeKeyboard {
 
   // Sets the current keyboard layout to |layout_name|. This function does not
   // change the current mapping of the modifier keys. Returns true on success.
-  virtual bool SetCurrentKeyboardLayoutByName(
-      const std::string& layout_name) = 0;
+  virtual bool SetCurrentKeyboardLayoutByName(const std::string& layout_name);
 
   // Sets the current keyboard layout again. We have to call the function every
   // time when "XI_HierarchyChanged" XInput2 event is sent to Chrome. See