Allow javascript change the virtual keyboard window size and position freely in FLOATING mode

ui/keyboard/keyboard_util.h

Index: ui/keyboard/keyboard_util.h
diff --git a/ui/keyboard/keyboard_util.h b/ui/keyboard/keyboard_util.h
index dc1c97b7b756b1441988f082987006faae42aea5..3ef2c144b19c646851ea3fb9aa29ef5b3a68c640 100644
--- a/ui/keyboard/keyboard_util.h
+++ b/ui/keyboard/keyboard_util.h
@@ -52,14 +52,11 @@ enum KeyboardShowOverride {
   KEYBOARD_SHOW_OVERRIDE_NONE,
 };
 
-// Gets the default keyboard bounds from |window_bounds|.
-KEYBOARD_EXPORT gfx::Rect DefaultKeyboardBoundsFromWindowBounds(
-    const gfx::Rect& window_bounds);
-
-// Gets the caculated keyboard bounds from |window_bounds|. The keyboard height
-// is specified by |keyboard_height|.
-KEYBOARD_EXPORT gfx::Rect KeyboardBoundsFromWindowBounds(
-    const gfx::Rect& window_bounds, int keyboard_height);
+// Gets the caculated keyboard bounds from |root_bounds|. The keyboard height
+// is specified by |keyboard_height|. This should be only called when keyboard
+// is in FULL_WDITH mode.
+KEYBOARD_EXPORT gfx::Rect FullWidthKeyboardBoundsFromRootBounds(
+    const gfx::Rect& root_bounds, int keyboard_height);
 
 // Sets the state of the a11y onscreen keyboard.
 KEYBOARD_EXPORT void SetAccessibilityKeyboardEnabled(bool enabled);