Record received data in WebViewPlugin and replay it when loading the real plugin.

webkit/glue/plugins/webview_plugin.cc

 // Copyright (c) 2010 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 "webkit/glue/plugins/webview_plugin.h"
 
+#include "base/histogram.h"
 #include "base/message_loop.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebCursorInfo.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebFrame.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebPluginContainer.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebSettings.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebSize.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebURL.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebURLRequest.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebURLResponse.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebView.h"
@@ skipping 28 matching lines @@
       finished_loading_(false) {
   web_view_ = WebView::create(this, NULL);
   web_view_->initializeMainFrame(this);
 }
 
 WebViewPlugin::~WebViewPlugin() {
   web_view_->close();
 }
 
 void WebViewPlugin::ReplayReceivedData(WebPlugin* plugin) {
-  if (response_.get()) {
-    plugin->didReceiveResponse(*response_);
-    plugin->didReceiveData(data_.c_str(), data_.length());
+  if (!response_.isNull()) {
+    plugin->didReceiveResponse(response_);
+    size_t total_bytes = 0;
+    for (std::list<std::string>::iterator it = data_.begin();
+        it != data_.end(); ++it) {
+      plugin->didReceiveData(it->c_str(), it->length());
+      total_bytes += it->length();
+    }
+    UMA_HISTOGRAM_MEMORY_KB("PluginDocument.Memory", (total_bytes / 1024));
+    UMA_HISTOGRAM_COUNTS("PluginDocument.NumChunks", data_.size());
   }
   if (finished_loading_) {
     plugin->didFinishLoading();
   }
   if (error_.get()) {
     plugin->didFailLoading(*error_);
   }
 }
 
 bool WebViewPlugin::initialize(WebPluginContainer* container) {
@@ skipping 48 matching lines @@
 
 bool WebViewPlugin::handleInputEvent(const WebInputEvent& event,
                                      WebCursorInfo& cursor) {
   current_cursor_ = cursor;
   bool handled = web_view_->handleInputEvent(event);
   cursor = current_cursor_;
   return handled;
 }
 
 void WebViewPlugin::didReceiveResponse(const WebURLResponse& response) {
-  DCHECK(!response_.get());
-  response_.reset(new WebURLResponse(response));
+  DCHECK(response_.isNull());
+  response_ = response;
 }
 
 void WebViewPlugin::didReceiveData(const char* data, int data_length) {
-  data_.append(data, data_length);
+  data_.push_back(std::string(data, data_length));
 }
 
 void WebViewPlugin::didFinishLoading() {
   DCHECK(!finished_loading_);
   finished_loading_ = true;
 }
 
 void WebViewPlugin::didFailLoading(const WebURLError& error) {
   DCHECK(!error_.get());
   error_.reset(new WebURLError(error));
@@ skipping 29 matching lines @@
 WebURLError WebViewPlugin::cancelledError(WebFrame* frame,
                                           const WebURLRequest& request) {
   // Return an error with a non-zero reason so isNull() on the corresponding
   // ResourceError is false.
   WebURLError error;
   error.domain = "WebViewPlugin";
   error.reason = -1;
   error.unreachableURL = request.url();
   return error;
 }