Make sure gin Handles exist before using them

When we run out of stack space for example, we can't create an handle.

BUG=363417
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/259993003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@266545 0039d316-1c4b-4281-b951-d872f2087c98

6 files changed, 12 insertions, 0 deletions

diff --git a/content/shell/renderer/gc_controller.cc b/content/shell/renderer/gc_controller.cc
index f8d3b09..8e6d7b2 100644
--- a/content/shell/renderer/gc_controller.cc
+++ b/content/shell/renderer/gc_controller.cc
@@ -27,6 +27,8 @@ void GCController::Install(blink::WebFrame* frame) {
 
   gin::Handle<GCController> controller =
       gin::CreateHandle(isolate, new GCController());
+  if (controller.IsEmpty())
+    return;
   v8::Handle<v8::Object> global = context->Global();
   global->Set(gin::StringToV8(isolate, "GCController"), controller.ToV8());
 }
diff --git a/content/shell/renderer/test_runner/accessibility_controller.cc b/content/shell/renderer/test_runner/accessibility_controller.cc
index cfe2a00..430e00c 100644
--- a/content/shell/renderer/test_runner/accessibility_controller.cc
+++ b/content/shell/renderer/test_runner/accessibility_controller.cc
@@ -61,6 +61,8 @@ void AccessibilityControllerBindings::Install(
   gin::Handle<AccessibilityControllerBindings> bindings =
       gin::CreateHandle(isolate,
                         new AccessibilityControllerBindings(controller));
+  if (bindings.IsEmpty())
+    return;
   v8::Handle<v8::Object> global = context->Global();
   global->Set(gin::StringToV8(isolate, "accessibilityController"),
               bindings.ToV8());
diff --git a/content/shell/renderer/test_runner/event_sender.cc b/content/shell/renderer/test_runner/event_sender.cc
index 88686df..b54485a 100644
--- a/content/shell/renderer/test_runner/event_sender.cc
+++ b/content/shell/renderer/test_runner/event_sender.cc
@@ -436,6 +436,8 @@ void EventSenderBindings::Install(base::WeakPtr<EventSender> sender,
 
   gin::Handle<EventSenderBindings> bindings =
       gin::CreateHandle(isolate, new EventSenderBindings(sender));
+  if (bindings.IsEmpty())
+    return;
   v8::Handle<v8::Object> global = context->Global();
   global->Set(gin::StringToV8(isolate, "eventSender"), bindings.ToV8());
 }
diff --git a/content/shell/renderer/test_runner/gamepad_controller.cc b/content/shell/renderer/test_runner/gamepad_controller.cc
index 6affefb..f03651b 100644
--- a/content/shell/renderer/test_runner/gamepad_controller.cc
+++ b/content/shell/renderer/test_runner/gamepad_controller.cc
@@ -68,6 +68,8 @@ void GamepadControllerBindings::Install(
 
   gin::Handle<GamepadControllerBindings> bindings =
       gin::CreateHandle(isolate, new GamepadControllerBindings(controller));
+  if (bindings.IsEmpty())
+    return;
   v8::Handle<v8::Object> global = context->Global();
   global->Set(gin::StringToV8(isolate, "gamepadController"), bindings.ToV8());
 }
diff --git a/content/shell/renderer/test_runner/test_runner.cc b/content/shell/renderer/test_runner/test_runner.cc
index 0c693f5..5097839 100644
--- a/content/shell/renderer/test_runner/test_runner.cc
+++ b/content/shell/renderer/test_runner/test_runner.cc
@@ -285,6 +285,8 @@ void TestRunnerBindings::Install(base::WeakPtr<TestRunner> runner,
 
   gin::Handle<TestRunnerBindings> bindings =
       gin::CreateHandle(isolate, new TestRunnerBindings(runner));
+  if (bindings.IsEmpty())
+    return;
   v8::Handle<v8::Object> global = context->Global();
   v8::Handle<v8::Value> v8_bindings = bindings.ToV8();
   global->Set(gin::StringToV8(isolate, "testRunner"), v8_bindings);
diff --git a/content/shell/renderer/test_runner/text_input_controller.cc b/content/shell/renderer/test_runner/text_input_controller.cc
index 65b24a2..6176e0f 100644
--- a/content/shell/renderer/test_runner/text_input_controller.cc
+++ b/content/shell/renderer/test_runner/text_input_controller.cc
@@ -68,6 +68,8 @@ void TextInputControllerBindings::Install(
 
   gin::Handle<TextInputControllerBindings> bindings =
       gin::CreateHandle(isolate, new TextInputControllerBindings(controller));
+  if (bindings.IsEmpty())
+    return;
   v8::Handle<v8::Object> global = context->Global();
   global->Set(gin::StringToV8(isolate, "textInputController"), bindings.ToV8());
 }