Fix issue that IME can't be enabled when set Plugin mode to "Click to play".

components/plugins/renderer/webview_plugin.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/plugins/renderer/webview_plugin.h"
 
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/safe_numerics.h"
 #include "content/public/renderer/web_preferences.h"
@@ skipping 28 matching lines @@
 using blink::WebURLRequest;
 using blink::WebURLResponse;
 using blink::WebVector;
 using blink::WebView;
 
 WebViewPlugin::WebViewPlugin(WebViewPlugin::Delegate* delegate)
     : delegate_(delegate),
       container_(NULL),
       web_view_(WebView::create(this)),
       web_frame_(WebFrame::create(this)),
-      finished_loading_(false) {
+      finished_loading_(false),
+      focused_(false) {
   web_view_->setMainFrame(web_frame_);
 }
 
 // static
 WebViewPlugin* WebViewPlugin::Create(WebViewPlugin::Delegate* delegate,
                                      const WebPreferences& preferences,
                                      const std::string& html_data,
                                      const GURL& url) {
   WebViewPlugin* plugin = new WebViewPlugin(delegate);
   WebView* web_view = plugin->web_view();
@@ skipping 17 matching lines @@
           it->c_str(), base::checked_numeric_cast<int, size_t>(it->length()));
       total_bytes += it->length();
     }
     UMA_HISTOGRAM_MEMORY_KB(
         "PluginDocument.Memory",
         (base::checked_numeric_cast<int, size_t>(total_bytes / 1024)));
     UMA_HISTOGRAM_COUNTS(
         "PluginDocument.NumChunks",
         (base::checked_numeric_cast<int, size_t>(data_.size())));
   }
+  // We need to transfer the |focused_| to new plugin after it loaded.
+  if (focused_) {
+    plugin->updateFocus(true);
+  }
   if (finished_loading_) {
     plugin->didFinishLoading();
   }
   if (error_) {
     plugin->didFailLoading(*error_);
   }
 }
 
 void WebViewPlugin::RestoreTitleText() {
   if (container_)
@@ skipping 46 matching lines @@
                                    const WebVector<WebRect>& cut_out_rects,
                                    bool is_visible) {
   if (static_cast<gfx::Rect>(frame_rect) != rect_) {
     rect_ = frame_rect;
     WebSize newSize(frame_rect.width, frame_rect.height);
     web_view_->setFixedLayoutSize(newSize);
     web_view_->resize(newSize);
   }
 }
 
+void WebViewPlugin::updateFocus(bool focused) {
+  focused_ = focused;
+}
+
 bool WebViewPlugin::acceptsInputEvents() { return true; }
 
 bool WebViewPlugin::handleInputEvent(const WebInputEvent& event,
                                      WebCursorInfo& cursor) {
   // For tap events, don't handle them. They will be converted to
   // mouse events later and passed to here.
   if (event.type == WebInputEvent::GestureTap)
     return false;
 
   if (event.type == WebInputEvent::ContextMenu) {
@@ skipping 59 matching lines @@
 void WebViewPlugin::didClearWindowObject(WebFrame* frame, int world_id) {
   if (delegate_)
     delegate_->BindWebFrame(frame);
 }
 
 void WebViewPlugin::didReceiveResponse(WebFrame* frame,
                                        unsigned identifier,
                                        const WebURLResponse& response) {
   WebFrameClient::didReceiveResponse(frame, identifier, response);
 }