[Linux]When cancelling a composition, only focus out/in the IM context when it has focus.

chrome/browser/renderer_host/gtk_im_context_wrapper.cc

Index: chrome/browser/renderer_host/gtk_im_context_wrapper.cc
diff --git a/chrome/browser/renderer_host/gtk_im_context_wrapper.cc b/chrome/browser/renderer_host/gtk_im_context_wrapper.cc
index 4b7f7ad7a43bb876f92d99e519ee862e36e0ab91..0705682c512511cac34f5085ee0b2611ef6c6a10 100644
--- a/chrome/browser/renderer_host/gtk_im_context_wrapper.cc
+++ b/chrome/browser/renderer_host/gtk_im_context_wrapper.cc
@@ -270,10 +270,12 @@ void GtkIMContextWrapper::CancelComposition() {
   gtk_im_context_reset(context_);
   gtk_im_context_reset(context_simple_);
 
-  // Some input methods may not honour the reset call. Focusing out/in the
-  // |context_| to make sure it gets reset correctly.
-  gtk_im_context_focus_out(context_);
-  gtk_im_context_focus_in(context_);
+  if (is_focused_) {
+    // Some input methods may not honour the reset call. Focusing out/in the
+    // |context_| to make sure it gets reset correctly.
+    gtk_im_context_focus_out(context_);
+    gtk_im_context_focus_in(context_);
+  }
 
   is_composing_text_ = false;
   preedit_text_.clear();