Merge to XFA: Refactor fxjs_v8 and add embeddertests for it.

(cherry picked from commit b17d62601b21dfce85718e08cfd0ffce3a45d74e)
(cherry picked from commit 09ed30750282bf56a92d0e646ab22c64bea81a36)
Manual edits:
  fpdfsdk/src/jsapi/fxjs_v8_embeddertest.cpp - add lockers.
  fppdfsdk/src/javascript/JS_Runtime.cpp - rework XFA init path.

Original Review URL: https://codereview.chromium.org/1338073002 .

R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1348433002 .

1 files changed, 71 insertions, 0 deletions

diff --git a/fpdfsdk/src/jsapi/fxjs_v8_embeddertest.cpp b/fpdfsdk/src/jsapi/fxjs_v8_embeddertest.cpp
new file mode 100644
index 0000000000..f45570b10f
--- /dev/null
+++ b/fpdfsdk/src/jsapi/fxjs_v8_embeddertest.cpp
@@ -0,0 +1,71 @@
+// Copyright 2015 PDFium 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 "../../../core/include/fpdfapi/fpdf_parser.h"
+#include "../../../testing/embedder_test.h"
+#include "../../include/fsdk_mgr.h"
+#include "../../include/javascript/JS_Runtime.h"
+#include "../../include/jsapi/fxjs_v8.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+const wchar_t kScript[] = L"fred = 7";
+
+}  // namespace
+
+class FXJSV8Embeddertest : public EmbedderTest {
+ public:
+  FXJSV8Embeddertest() : m_pIsolate(nullptr) {}
+  ~FXJSV8Embeddertest() override {}
+
+  void SetUp() override {
+    EmbedderTest::SetUp();
+    m_pAllocator.reset(new JS_ArrayBufferAllocator());
+
+    v8::Isolate::CreateParams params;
+    params.array_buffer_allocator = m_pAllocator.get();
+    m_pIsolate = v8::Isolate::New(params);
+
+    v8::Isolate::Scope isolate_scope(m_pIsolate);
+    v8::Locker locker(m_pIsolate);
+    v8::HandleScope handle_scope(m_pIsolate);
+    JS_Initialize(0);
+    JS_PrepareIsolate(m_pIsolate);
+    JS_InitializeRuntime(m_pIsolate, nullptr, nullptr, m_pPersistentContext);
+  }
+
+  void TearDown() override {
+    JS_ReleaseRuntime(m_pIsolate, m_pPersistentContext);
+    JS_Release();
+    EmbedderTest::TearDown();
+  }
+
+  v8::Isolate* isolate() const { return m_pIsolate; }
+  v8::Local<v8::Context> GetV8Context() {
+    return v8::Local<v8::Context>::New(m_pIsolate, m_pPersistentContext);
+  }
+
+ private:
+  v8::Isolate* m_pIsolate;
+  v8::Global<v8::Context> m_pPersistentContext;
+  nonstd::unique_ptr<v8::ArrayBuffer::Allocator> m_pAllocator;
+};
+
+TEST_F(FXJSV8Embeddertest, Getters) {
+  v8::Isolate::Scope isolate_scope(isolate());
+  v8::Locker locker(isolate());
+  v8::HandleScope handle_scope(isolate());
+  v8::Context::Scope context_scope(GetV8Context());
+
+  FXJSErr error;
+  CFX_WideString wsInfo;
+  CFX_WideString wsScript(kScript);
+  int sts = JS_Execute(isolate(), nullptr, kScript, wcslen(kScript), &error);
+  EXPECT_EQ(0, sts);
+
+  v8::Local<v8::Object> This = JS_GetThisObj(isolate());
+  v8::Local<v8::Value> fred = JS_GetObjectElement(isolate(), This, L"fred");
+  EXPECT_TRUE(fred->IsNumber());
+}