Plugin Power Saver: Implement size-based heuristic for peripheral content.

content/browser/web_contents/web_contents_impl.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/browser/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 480 matching lines @@
   if (render_frame_host)
     render_frame_message_source_ = render_frame_host;
   else
     render_view_message_source_ = render_view_host;
 
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(WebContentsImpl, message)
 #if defined(ENABLE_PLUGINS)
     IPC_MESSAGE_HANDLER(FrameHostMsg_PepperPluginHung, OnPepperPluginHung)
     IPC_MESSAGE_HANDLER(FrameHostMsg_PluginCrashed, OnPluginCrashed)
+    IPC_MESSAGE_HANDLER(FrameHostMsg_PluginContentOriginAllowed,
+                        OnPluginContentOriginAllowed)
 #endif
     IPC_MESSAGE_HANDLER(FrameHostMsg_DomOperationResponse,
                         OnDomOperationResponse)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidChangeThemeColor,
                         OnThemeColorChanged)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidFinishDocumentLoad,
                         OnDocumentLoadedInFrame)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidFinishLoad, OnDidFinishLoad)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidStartLoading, OnDidStartLoading)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidStopLoading, OnDidStopLoading)
@@ skipping 2058 matching lines @@
     const LoadCommittedDetails& details,
     const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
   if (details.is_navigation_to_different_page()) {
     // Clear the status bubble. This is a workaround for a bug where WebKit
     // doesn't let us know that the cursor left an element during a
     // transition (this is also why the mouse cursor remains as a hand after
     // clicking on a link); see bugs 1184641 and 980803. We don't want to
     // clear the bubble when a user navigates to a named anchor in the same
     // page.
     UpdateTargetURL(GURL());
+
+#if defined(ENABLE_PLUGINS)
+    // Clear the tab-wide origin whitelist. We expect RenderFrames to clear
+    // their replicated origin whitelist independently.
+    plugin_content_origin_whitelist_.clear();
+#endif
   }
 
   if (!details.is_in_page) {
     // Once the main frame is navigated, we're no longer considered to have
     // displayed insecure content.
     displayed_insecure_content_ = false;
     SSLManager::NotifySSLInternalStateChanged(
         GetController().GetBrowserContext());
   }
 
@@ skipping 311 matching lines @@
   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
                     PluginHungStatusChanged(plugin_child_id, path, is_hung));
 }
 
 void WebContentsImpl::OnPluginCrashed(const base::FilePath& plugin_path,
                                       base::ProcessId plugin_pid) {
   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
                     PluginCrashed(plugin_path, plugin_pid));
 }
 
+void WebContentsImpl::OnPluginContentOriginAllowed(const GURL& content_origin) {
+  DCHECK(render_frame_message_source_);
+  DCHECK(!render_view_message_source_);
+
+  plugin_content_origin_whitelist_.insert(content_origin);
+
+  SendToAllFrames(new FrameMsg_UpdatePluginContentOriginWhitelist(
+      MSG_ROUTING_NONE, plugin_content_origin_whitelist_));
+}
 #endif  // defined(ENABLE_PLUGINS)
 
 void WebContentsImpl::OnDomOperationResponse(const std::string& json_string,
                                              int automation_id) {
   DomOperationNotificationDetails details(json_string, automation_id);
   NotificationService::current()->Notify(
       NOTIFICATION_DOM_OPERATION_RESPONSE,
       Source<WebContents>(this),
       Details<DomOperationNotificationDetails>(&details));
 }
@@ skipping 415 matching lines @@
   return GetLastCommittedURL();
 }
 
 void WebContentsImpl::RenderFrameCreated(RenderFrameHost* render_frame_host) {
   // Note this is only for subframes, the notification for the main frame
   // happens in RenderViewCreated.
   FOR_EACH_OBSERVER(WebContentsObserver,
                     observers_,
                     RenderFrameCreated(render_frame_host));
   SetAccessibilityModeOnFrame(accessibility_mode_, render_frame_host);
+
+#if defined(ENABLE_PLUGINS)
+  if (!plugin_content_origin_whitelist_.empty()) {

[Charlie Reis, 2014/10/30 22:13:16]

This feels like it belongs in a WebContentsObserver, rather than living here.

[tommycli, 2014/10/31 00:01:21]

Done.

+    Send(new FrameMsg_UpdatePluginContentOriginWhitelist(
+        render_frame_host->GetRoutingID(), plugin_content_origin_whitelist_));
+  }
+#endif
 }
 
 void WebContentsImpl::RenderFrameDeleted(RenderFrameHost* render_frame_host) {
   ClearPowerSaveBlockers(render_frame_host);
   FOR_EACH_OBSERVER(WebContentsObserver,
                     observers_,
                     RenderFrameDeleted(render_frame_host));
 }
 
 void WebContentsImpl::WorkerCrashed(RenderFrameHost* render_frame_host) {
@@ skipping 980 matching lines @@
   node->render_manager()->ResumeResponseDeferredAtStart();
 }
 
 void WebContentsImpl::SetForceDisableOverscrollContent(bool force_disable) {
   force_disable_overscroll_content_ = force_disable;
   if (view_)
     view_->SetOverscrollControllerEnabled(CanOverscrollContent());
 }
 
 }  // namespace content