Show OOM notification bar in all tabs sharing same render process

chrome/browser/renderer_host/browser_render_process_host.cc

Index: chrome/browser/renderer_host/browser_render_process_host.cc
diff --git a/chrome/browser/renderer_host/browser_render_process_host.cc b/chrome/browser/renderer_host/browser_render_process_host.cc
index 011bac817bfba23d048f9d51bb1a7c9587655bcc..eb4a1caea47c55d67283c0623d65846dc011d926 100644
--- a/chrome/browser/renderer_host/browser_render_process_host.cc
+++ b/chrome/browser/renderer_host/browser_render_process_host.cc
@@ -999,6 +999,8 @@ void BrowserRenderProcessHost::OnMessageReceived(const IPC::Message& msg) {
                           OnUserMetricsRecordAction)
       IPC_MESSAGE_HANDLER(ViewHostMsg_SpellChecker_RequestDictionary,
                           OnSpellCheckerRequestDictionary)
+      IPC_MESSAGE_HANDLER_DELAY_REPLY(ViewHostMsg_RenderProcessOutOfJSMemory,
+                          OnRenderProcessOutOfJSMemory)
       IPC_MESSAGE_UNHANDLED_ERROR()
     IPC_END_MESSAGE_MAP_EX()
 
@@ -1251,6 +1253,19 @@ void BrowserRenderProcessHost::OnSpellCheckerRequestDictionary() {
   }
 }
 
+void BrowserRenderProcessHost::OnRenderProcessOutOfJSMemory(
+    IPC::Message* reply_msg) {
+  Send(reply_msg);
+
+  // Show OOM notification bar in all tabs sharing this render process.
+  IDMap<IPC::Channel::Listener>::iterator iter(&listeners_);
+  while (!iter.IsAtEnd()) {
+    iter.GetCurrentValue()->OnMessageReceived(
+        ViewHostMsg_JSOutOfMemory(iter.GetCurrentKey()));
+    iter.Advance();
+  }
+}
+
 void BrowserRenderProcessHost::AddSpellCheckWord(const std::string& word) {
   Send(new ViewMsg_SpellChecker_WordAdded(word));
 }