[BrowserTag] Send dib info with NavigateGuest message,

content/renderer/browser_plugin/browser_plugin.cc

 // Copyright (c) 2012 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 "content/renderer/browser_plugin/browser_plugin.h"
 
 #include "base/message_loop.h"
 #include "base/string_util.h"
 #if defined (OS_WIN)
 #include "base/sys_info.h"
@@ skipping 84 matching lines @@
 void BrowserPlugin::SetSrcAttribute(const std::string& src) {
   if (src == src_ && !guest_crashed_)
     return;
   if (!src.empty() || navigate_src_sent_) {
     BrowserPluginManager::Get()->Send(
         new BrowserPluginHostMsg_NavigateGuest(
             render_view_->GetRoutingID(),
             instance_id_,
             parent_frame_,
             src,
-            gfx::Size(width(), height())));
+            *GetPendingResizeParams()));

[Fady Samuel, 2012/09/24 22:16:58]

Shouldn't this get freed after we send it?

[lazyboy, 2012/09/25 17:57:22]

Done.

     // Record that we sent a NavigateGuest message to embedder. Once we send
     // such a message, subsequent SetSrcAttribute() calls must always send
     // NavigateGuest messages to the embedder (even if |src| is empty), so
     // resize works correctly for all cases (e.g. The embedder can reset the
     // guest's |src| to empty value, resize and then set the |src| to a
     // non-empty value).
     navigate_src_sent_ = true;
   }
   src_ = src;
   guest_crashed_ = false;
@@ skipping 239 matching lines @@
     const WebRect& clip_rect,
     const WebVector<WebRect>& cut_outs_rects,
     bool is_visible) {
   int old_width = width();
   int old_height = height();
   plugin_rect_ = window_rect;
   if (old_width == window_rect.width &&
       old_height == window_rect.height) {
     return;
   }
-  // Until an actual navigation occurs, there is no browser side embedder
-  // present to notify about geometry updates. In this case, after we've updated
-  // the BrowserPlugin's state we are done and can return immediately.
-  if (!navigate_src_sent_)
-    return;
 
   const size_t stride = skia::PlatformCanvas::StrideForWidth(window_rect.width);
   // Make sure the size of the damage buffer is at least four bytes so that we
   // can fit in a magic word to verify that the memory is shared correctly.
   size_t size =
       std::max(sizeof(unsigned int),
                static_cast<size_t>(window_rect.height *
                                    stride *
                                    GetDeviceScaleFactor() *
                                    GetDeviceScaleFactor()));
@@ skipping 12 matching lines @@
   new_damage_buffer = TransportDIB::Map(shared_mem.handle());
 #else
   new_damage_buffer = RenderProcess::current()->CreateTransportDIB(size);
 #endif
   if (!new_damage_buffer)
     NOTREACHED() << "Unable to create damage buffer";
   DCHECK(new_damage_buffer->memory());
   // Insert the magic word.
   *static_cast<unsigned int*>(new_damage_buffer->memory()) = 0xdeadbeef;
 
-  BrowserPluginHostMsg_ResizeGuest_Params params;
-  params.damage_buffer_id = new_damage_buffer->id();
-#if defined(OS_WIN)
-  params.damage_buffer_size = size;
-#endif
-  params.width = window_rect.width;
-  params.height = window_rect.height;
-  params.resize_pending = resize_pending_;
-  params.scale_factor = GetDeviceScaleFactor();
-  BrowserPluginManager::Get()->Send(new BrowserPluginHostMsg_ResizeGuest(
-      render_view_->GetRoutingID(),
-      instance_id_,
-      params));
-  resize_pending_ = true;
-
   if (damage_buffer_) {
     RenderProcess::current()->FreeTransportDIB(damage_buffer_);
     damage_buffer_ = NULL;
   }
   damage_buffer_ = new_damage_buffer;
+
+  pending_resize_params_.reset();
+
+  scoped_ptr<BrowserPluginHostMsg_ResizeGuest_Params> params(
+      new BrowserPluginHostMsg_ResizeGuest_Params);
+  params->damage_buffer_id = new_damage_buffer->id();
+#if defined(OS_WIN)
+  params->damage_buffer_size = size;
+#endif
+  params->width = window_rect.width;
+  params->height = window_rect.height;
+  params->resize_pending = resize_pending_;
+  params->scale_factor = GetDeviceScaleFactor();
+
+  // Until an actual navigation occurs, there is no browser side embedder
+  // present to notify about geometry updates. In this case, after we've updated
+  // the BrowserPlugin's state we are done and we do not send a resize message
+  // to the browser.
+  if (navigate_src_sent_) {
+    resize_pending_ = true;
+    BrowserPluginManager::Get()->Send(new BrowserPluginHostMsg_ResizeGuest(
+        render_view_->GetRoutingID(),
+        instance_id_,
+        *(params.get())));
+  } else {
+    pending_resize_params_.reset(params.release());
+  }
+}
+
+BrowserPluginHostMsg_ResizeGuest_Params*
+    BrowserPlugin::GetPendingResizeParams() {
+  if (pending_resize_params_.get()) {
+    return pending_resize_params_.release();
+  } else {
+    BrowserPluginHostMsg_ResizeGuest_Params* params =
+        new BrowserPluginHostMsg_ResizeGuest_Params;
+
+    // We don't have a pending resize to send, so we send an invalid transport
+    // dib Id.
+    params->damage_buffer_id = TransportDIB::Id();
+    params->width = width();
+    params->height = height();
+    return params;
+  }
 }
 
 void BrowserPlugin::updateFocus(bool focused) {
   BrowserPluginManager::Get()->Send(new BrowserPluginHostMsg_SetFocus(
       render_view_->GetRoutingID(),
       instance_id_,
       focused));
 }
 
 void BrowserPlugin::updateVisibility(bool visible) {
@@ skipping 40 matching lines @@
                                                  void* notify_data) {
 }
 
 void BrowserPlugin::didFailLoadingFrameRequest(
     const WebKit::WebURL& url,
     void* notify_data,
     const WebKit::WebURLError& error) {
 }
 
 }  // namespace content