[Android] Restart input only once on focus change

content/renderer/render_widget.cc

Index: content/renderer/render_widget.cc
diff --git a/content/renderer/render_widget.cc b/content/renderer/render_widget.cc
index ac6f63108036e4bde831e5d6b142cfd7052e4c6e..57ef1fb90bad3bf8d681a5194445d16e7458c742 100644
--- a/content/renderer/render_widget.cc
+++ b/content/renderer/render_widget.cc
@@ -1030,6 +1030,14 @@ void RenderWidget::ShowVirtualKeyboard() {
   UpdateTextInputStateInternal(true, false);
 }
 
+void RenderWidget::ClearTextInputState() {
+  text_input_info_ = blink::WebTextInputInfo();
+  text_input_type_ = ui::TextInputType::TEXT_INPUT_TYPE_NONE;
+  text_input_mode_ = ui::TextInputMode::TEXT_INPUT_MODE_DEFAULT;
+  can_compose_inline_ = false;
+  text_input_flags_ = 0;
+}
+
 void RenderWidget::UpdateTextInputState() {
   UpdateTextInputStateInternal(false, false);
 }
@@ -2091,13 +2099,6 @@ blink::WebScreenInfo RenderWidget::screenInfo() {
   return web_screen_info;
 }
 
-void RenderWidget::resetInputMethod() {
-  ImeEventGuard guard(this);
-  Send(new InputHostMsg_ImeCancelComposition(routing_id()));
-
-  UpdateCompositionInfo(false /* not an immediate request */);
-}
-
 #if defined(OS_ANDROID)
 void RenderWidget::showUnhandledTapUIIfNeeded(
     const WebPoint& tapped_position,