Render/pepper hang debugging: generate dumps for the browser and renderer processes if users kill a…

chrome/browser/ui/hung_plugin_tab_helper.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 "chrome/browser/ui/hung_plugin_tab_helper.h"
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/process.h"
 #include "base/process_util.h"
@@ skipping 47 matching lines @@
   }
 
   std::vector<HANDLE>& data() { return data_; }
 
  private:
   std::vector<HANDLE> data_;
 
   DISALLOW_COPY_AND_ASSIGN(OwnedHandleVector);
 };
 
+void DumpBrowserInBlockingPool() {
+  CrashDumpForHangDebugging(::GetCurrentProcess());
+}
+
 void DumpRenderersInBlockingPool(OwnedHandleVector* renderer_handles) {
   for (std::vector<HANDLE>::const_iterator iter =
            renderer_handles->data().begin();
        iter != renderer_handles->data().end(); ++iter) {
-    CrashDumpIfProcessHandlingPepper(*iter);
+    CrashDumpForHangDebugging(*iter);
   }
 }
 
 void DumpAndTerminatePluginInBlockingPool(
     base::win::ScopedHandle* plugin_handle) {
   CrashDumpAndTerminateHungChildProcess(plugin_handle->Get());
 }
 
 #endif
 
@@ skipping 224 matching lines @@
         HANDLE handle = NULL;
         ::DuplicateHandle(current_process, host->GetHandle(), current_process,
                           &handle, 0, FALSE, DUPLICATE_SAME_ACCESS);
         renderer_handles->data().push_back(handle);
       }
       // If there are a lot of renderer processes, it is likely that we will
       // generate too many crash dumps. They might not all be uploaded/recorded
       // due to our crash dump uploading restrictions. So we just don't generate
       // renderer crash dumps in that case.
       if (renderer_handles->data().size() > 0 &&
-          renderer_handles->data().size() < 8) {
+          renderer_handles->data().size() < 4) {
+        content::BrowserThread::PostBlockingPoolSequencedTask(
+            kDumpChildProcessesSequenceName, FROM_HERE,
+            base::Bind(&DumpBrowserInBlockingPool));
         content::BrowserThread::PostBlockingPoolSequencedTask(
             kDumpChildProcessesSequenceName, FROM_HERE,
             base::Bind(&DumpRenderersInBlockingPool,
                        base::Owned(renderer_handles.release())));
       }
     }
   }
 #endif
 
   PluginStateMap::iterator found = hung_plugins_.find(child_id);
@@ skipping 39 matching lines @@
     state->info_bar = NULL;
   }
 }
 
 InfoBarTabHelper* HungPluginTabHelper::GetInfoBarHelper() {
   TabContents* tab_contents = TabContents::FromWebContents(web_contents());
   if (!tab_contents)
     return NULL;
   return tab_contents->infobar_tab_helper();
 }