For lack of a better approach we now initiate the plugin src url download in ...

webkit/glue/webplugin_impl.cc

 // Copyright (c) 2006-2008 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 "config.h"
 
 #include "Cursor.h"
 #include "Document.h"
 #include "DocumentLoader.h"
 #include "Event.h"
@@ skipping 360 matching lines @@
                              char** arg_values)
     : windowless_(false),
       window_(NULL),
       element_(element),
       webframe_(webframe),
       delegate_(delegate),
       widget_(NULL),
       plugin_url_(plugin_url),
       load_manually_(load_manually),
       first_geometry_update_(true),
-      mime_type_(mime_type) {
+      mime_type_(mime_type),
+      ALLOW_THIS_IN_INITIALIZER_LIST(method_factory_(this)) {
 
   ArrayToVector(arg_count, arg_names, &arg_names_);
   ArrayToVector(arg_count, arg_values, &arg_values_);
 }
 
 WebPluginImpl::~WebPluginImpl() {
 }
 
 void WebPluginImpl::SetWindow(gfx::NativeView window) {
   if (window) {
@@ skipping 334 matching lines @@
   delegate_->UpdateGeometry(webkit_glue::FromIntRect(window_rect),
                             webkit_glue::FromIntRect(clip_rect));
 
   // Initiate a download on the plugin url. This should be done for the
   // first update geometry sequence. We need to ensure that the plugin
   // receives the geometry update before it starts receiving data.
   if (first_geometry_update_) {
     first_geometry_update_ = false;
     // An empty url corresponds to an EMBED tag with no src attribute.
     if (!load_manually_ && plugin_url_.is_valid()) {
-      HandleURLRequestInternal("GET", false, NULL, 0, NULL, false, false,
-                               plugin_url_.spec().c_str(), NULL, false,
-                               false);
+      // The Flash plugin hangs for a while if it receives data before
+      // receiving valid plugin geometry. By valid geometry we mean the
+      // geometry received by a call to setFrameRect in the Webkit
+      // layout code path. To workaround this issue we download the
+      // plugin source url on a timer.
+      MessageLoop::current()->PostDelayedTask(FROM_HERE,
+          method_factory_.NewRunnableMethod(
+              &WebPluginImpl::OnDownloadPluginSrcUrl),
+          0);
     }
   }
 }
 
+void WebPluginImpl::OnDownloadPluginSrcUrl() {
+  HandleURLRequestInternal("GET", false, NULL, 0, NULL, false, false,
+                           plugin_url_.spec().c_str(), NULL, false,
+                           false);
+}
+
 void WebPluginImpl::paint(WebCore::GraphicsContext* gc,
                           const WebCore::IntRect& damage_rect) {
   if (gc->paintingDisabled())
     return;
 
   if (!parent())
     return;
 
   // Don't paint anything if the plugin doesn't intersect the damage rect.
   if (!widget_->frameRect().intersects(damage_rect))
@@ skipping 643 matching lines @@
 
   WebPluginGeometry move;
   move.window = window_;
   move.window_rect = gfx::Rect();
   move.clip_rect = gfx::Rect();
   move.rects_valid = false;
   move.visible = widget_->isVisible();
 
   webview->delegate()->DidMove(webview, move);
 }