Change OOMs to raise custom exception rather than breakpoint on Windows.

content/renderer/render_frame_impl.cc

 // Copyright 2013 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 "content/renderer/render_frame_impl.h"
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 379 matching lines @@
 }
 
 bool IsBrowserInitiated(NavigationParams* pending) {
   // A navigation resulting from loading a javascript URL should not be treated
   // as a browser initiated event.  Instead, we want it to look as if the page
   // initiated any load resulting from JS execution.
   return pending &&
          !pending->common_params.url.SchemeIs(url::kJavaScriptScheme);
 }
 
+NOINLINE void ExhaustMemory() {
+  volatile void* ptr = nullptr;
+  do {
+    ptr = malloc(0x10000000);
+  } while (ptr);
+}
+
 NOINLINE void CrashIntentionally() {
   // NOTE(shess): Crash directly rather than using NOTREACHED() so
   // that the signature is easier to triage in crash reports.
   //
   // Linker's ICF feature may merge this function with other functions with the
   // same definition and it may confuse the crash report processing system.
   static int static_variable_to_make_this_function_unique = 0;
   base::debug::Alias(&static_variable_to_make_this_function_unique);
 
   volatile int* zero = nullptr;
@@ skipping 89 matching lines @@
   } else if (url == GURL(kChromeUIHangURL)) {
     LOG(ERROR) << "Intentionally hanging ourselves with sleep infinite loop"
                << " because user navigated to " << url.spec();
     for (;;) {
       base::PlatformThread::Sleep(base::TimeDelta::FromSeconds(1));
     }
   } else if (url == GURL(kChromeUIShorthangURL)) {
     LOG(ERROR) << "Intentionally sleeping renderer for 20 seconds"
                << " because user navigated to " << url.spec();
     base::PlatformThread::Sleep(base::TimeDelta::FromSeconds(20));
+  } else if (url == GURL(kChromeUIMemoryExhaustURL)) {
+    LOG(ERROR)
+        << "Intentionally exhausting renderer memory because user navigated to "
+        << url.spec();
+    ExhaustMemory();
   }
 
 #if defined(ADDRESS_SANITIZER) || defined(SYZYASAN)
   MaybeTriggerAsanError(url);
 #endif  // ADDRESS_SANITIZER || SYZYASAN
 }
 
 // Returns false unless this is a top-level navigation.
 bool IsTopLevelNavigation(WebFrame* frame) {
   return frame->parent() == NULL;
@@ skipping 5817 matching lines @@
   // event target. Potentially a Pepper plugin will receive the event.
   // In order to tell whether a plugin gets the last mouse event and which it
   // is, we set |pepper_last_mouse_event_target_| to null here. If a plugin gets
   // the event, it will notify us via DidReceiveMouseEvent() and set itself as
   // |pepper_last_mouse_event_target_|.
   pepper_last_mouse_event_target_ = nullptr;
 #endif
 }
 
 }  // namespace content