Handle view resize for ripple

ui/views/animation/ink_drop_ripple.h

Index: ui/views/animation/ink_drop_ripple.h
diff --git a/ui/views/animation/ink_drop_ripple.h b/ui/views/animation/ink_drop_ripple.h
index 1acde1a067ad1ea71d316adfd50de9d51071138f..18160e7d1137885418057d029706fe900d4b7b68 100644
--- a/ui/views/animation/ink_drop_ripple.h
+++ b/ui/views/animation/ink_drop_ripple.h
@@ -7,6 +7,7 @@
 
 #include "base/macros.h"
 #include "ui/gfx/geometry/point.h"
+#include "ui/gfx/geometry/size.h"
 #include "ui/views/animation/ink_drop_ripple_observer.h"
 #include "ui/views/animation/ink_drop_state.h"
 #include "ui/views/views_export.h"
@@ -53,6 +54,9 @@ class VIEWS_EXPORT InkDropRipple {
   // AnimationStarted(s2).
   void set_observer(InkDropRippleObserver* observer) { observer_ = observer; }
 
+  // Called by ink drop hosts when their size is changed.

[bruthig, 2016/11/28 22:13:46]

nit: This comment is somewhat inaccurate.  This function is called by the
InkDropImpl not directly by hosts. Can you capture why this function exists and
why/when a subclass should override it.  Something along the lines of:

// Handles dynamic host resizes.  Subclasses can override to update an
// already visible ripple when the host is resized.

[mohsen, 2016/11/29 00:07:12]

Updated.

+  virtual void HostSizeChanged(const gfx::Size& new_size);
+
   // Animates from the current InkDropState to the new |ink_drop_state|.
   //
   // NOTE: GetTargetInkDropState() should return the new |ink_drop_state| value