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 4ce4f972db0f278193541181710e527129cdb364..e1113049d3a5c7d8a84d5f80da1c5ffa40a7c9e2 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -493,6 +493,8 @@ bool WebContentsImpl::OnMessageReceived(RenderViewHost* render_view_host,
   IPC_BEGIN_MESSAGE_MAP(WebContentsImpl, message)
     IPC_MESSAGE_HANDLER(FrameHostMsg_PepperPluginHung, OnPepperPluginHung)
     IPC_MESSAGE_HANDLER(FrameHostMsg_PluginCrashed, OnPluginCrashed)
+    IPC_MESSAGE_HANDLER(FrameHostMsg_PluginContentOriginAllowed,
+                        OnPluginContentOriginAllowed)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DomOperationResponse,
                         OnDomOperationResponse)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidChangeThemeColor,
@@ -2568,6 +2570,10 @@ void WebContentsImpl::DidNavigateMainFramePostCommit(
     // clear the bubble when a user navigates to a named anchor in the same
     // page.
     UpdateTargetURL(GURL());
+
+    // Clear the tab-wide origin whitelist. We expect RenderFrames to clear
+    // their replicated origin whitelist independently.
+    plugin_content_origin_whitelist_.clear();
   }
 
   if (!details.is_in_page) {
@@ -2899,6 +2905,16 @@ 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_));
+}
+
 void WebContentsImpl::OnDomOperationResponse(const std::string& json_string,
                                              int automation_id) {
   DomOperationNotificationDetails details(json_string, automation_id);
@@ -3332,10 +3348,16 @@ void WebContentsImpl::RenderFrameCreated(RenderFrameHost* render_frame_host) {
                     observers_,
                     RenderFrameCreated(render_frame_host));
   SetAccessibilityModeOnFrame(accessibility_mode_, render_frame_host);
+
+  if (!plugin_content_origin_whitelist_.empty()) {
+    Send(new FrameMsg_UpdatePluginContentOriginWhitelist(
+        render_frame_host->GetRoutingID(), plugin_content_origin_whitelist_));
+  }
 }
 
 void WebContentsImpl::RenderFrameDeleted(RenderFrameHost* render_frame_host) {
   ClearPowerSaveBlockers(render_frame_host);
+
   FOR_EACH_OBSERVER(WebContentsObserver,
                     observers_,
                     RenderFrameDeleted(render_frame_host));