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

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index fe1f367c23944475d8f5c55c9d27af2e38867916..d7de21fb88d74f069d72ac0a16cfa2124e7bc0b8 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -498,6 +498,8 @@ bool WebContentsImpl::OnMessageReceived(RenderViewHost* render_view_host,
 #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)
@@ -2576,6 +2578,12 @@ void WebContentsImpl::DidNavigateMainFramePostCommit(
     // 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) {
@@ -2907,6 +2915,15 @@ void WebContentsImpl::OnPluginCrashed(const base::FilePath& plugin_path,
                     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,
@@ -3342,6 +3359,13 @@ void WebContentsImpl::RenderFrameCreated(RenderFrameHost* render_frame_host) {
                     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) {