Implement RenderWidgetHostViewBase::ImeCancelComposition for all Views (Aura Only)

content/browser/renderer_host/render_widget_host_view_base.cc

Index: content/browser/renderer_host/render_widget_host_view_base.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_base.cc b/content/browser/renderer_host/render_widget_host_view_base.cc
index c4b9d14c8d71540e0479b99ab99c7b6b64482688..0b34ce08789a322dc1894a812d809c1ec9ffeab9 100644
--- a/content/browser/renderer_host/render_widget_host_view_base.cc
+++ b/content/browser/renderer_host/render_widget_host_view_base.cc
@@ -403,14 +403,21 @@ void RenderWidgetHostViewBase::TransformPointToLocalCoordSpace(
 
 void RenderWidgetHostViewBase::TextInputStateChanged(
     const TextInputState& text_input_state) {
-// TODO(ekaramad): Use TextInputManager code paths when IME is implemented on
-// other platforms.
+// TODO(ekaramad): Use TextInputManager code paths for IME on other platforms.
 #if defined(USE_AURA)
   if (GetTextInputManager())
     GetTextInputManager()->UpdateTextInputState(this, text_input_state);
 #endif
 }
 
+void RenderWidgetHostViewBase::ImeCancelComposition() {
+// TODO(ekaramad): Use TextInputManager code paths for IME on other platforms.
+#if defined(USE_AURA)
+  if (GetTextInputManager())
+    GetTextInputManager()->ImeCancelComposition(this);
+#endif
+}
+
 TextInputManager* RenderWidgetHostViewBase::GetTextInputManager() {
   if (text_input_manager_)
     return text_input_manager_;