Forward handling of low-mem message to the content renderer client. Add APIs to handle this case.

chrome/renderer/spellchecker/spellcheck.cc

Index: chrome/renderer/spellchecker/spellcheck.cc
diff --git a/chrome/renderer/spellchecker/spellcheck.cc b/chrome/renderer/spellchecker/spellcheck.cc
index c9e3405735b4013ad60678857f48df5b7e80b73b..86d0e1907536d60f1245f4b2579a3147c9643b41 100644
--- a/chrome/renderer/spellchecker/spellcheck.cc
+++ b/chrome/renderer/spellchecker/spellcheck.cc
@@ -11,15 +11,17 @@
 #include "chrome/common/render_messages.h"
 #include "chrome/common/spellcheck_common.h"
 #include "chrome/common/spellcheck_messages.h"
+#include "chrome/renderer/chrome_content_renderer_client.h"
 #include "third_party/hunspell/src/hunspell/hunspell.hxx"
 
 using base::TimeTicks;
 
-SpellCheck::SpellCheck()
+SpellCheck::SpellCheck(chrome::ChromeContentRendererClient* renderer_client)
     : file_(base::kInvalidPlatformFileValue),
       auto_spell_correct_turned_on_(false),
       is_using_platform_spelling_engine_(false),
-      initialized_(false) {
+      initialized_(false),
+      renderer_client_(renderer_client) {
   // Wait till we check the first word before doing any initializing.
 }
 
@@ -37,8 +39,9 @@ bool SpellCheck::OnControlMessageReceived(const IPC::Message& message) {
   IPC_END_MESSAGE_MAP()
 
   if (message.type() == ViewMsg_PurgeMemory::ID) {
-    delete this;
-    new SpellCheck();
+    if (renderer_client_) {

[jam, 2011/06/21 22:59:39]

ditto

[Greg Billock, 2011/06/22 15:58:35]

Done.

+      renderer_client_->ResetSpellCheck();
+    }
   }
 
   return handled;