Fix V8 isolate setup in embedder tests and roll V8 to 055bfa7.

testing/embedder_test.cpp

 // 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 "testing/embedder_test.h"
 
 #include <limits.h>
 
 #include <list>
 #include <string>
@@ skipping 40 matching lines @@
 #ifdef PDF_ENABLE_V8
 #ifdef V8_USE_EXTERNAL_STARTUP_DATA
   InitializeV8ForPDFium(g_exe_path_, std::string(), &natives_, &snapshot_,
                         &platform_);
 #else
   InitializeV8ForPDFium(&platform_);
 #endif  // V8_USE_EXTERNAL_STARTUP_DATA
 #endif  // FPDF_ENABLE_V8
 }
 
-EmbedderTest::~EmbedderTest() {}
+EmbedderTest::~EmbedderTest() {
+#ifdef PDF_ENABLE_V8
+  v8::V8::ShutdownPlatform();
+  delete platform_;
+#endif  // PDF_ENABLE_V8
+}
 
 void EmbedderTest::SetUp() {
   FPDF_LIBRARY_CONFIG config;
   config.version = 2;
   config.m_pUserFontPaths = nullptr;
   config.m_v8EmbedderSlot = 0;
   config.m_pIsolate = external_isolate_;
   FPDF_InitLibraryWithConfig(&config);
 
   UNSUPPORT_INFO* info = static_cast<UNSUPPORT_INFO*>(this);
@@ skipping 14 matching lines @@
     FPDFDOC_ExitFormFillEnvironment(form_handle_);
 #else   // PDF_ENABLE_XFA
     FPDFDOC_ExitFormFillEnvironment(form_handle_);
     FPDF_CloseDocument(document_);
 #endif  // PDF_ENABLE_XFA
   }
 
   FPDFAvail_Destroy(avail_);
   FPDF_DestroyLibrary();
 
-#ifdef PDF_ENABLE_V8
-  v8::V8::ShutdownPlatform();
-  delete platform_;
-#endif  // PDF_ENABLE_V8
-
   delete loader_;
 }
 
 bool EmbedderTest::CreateEmptyDocument() {
   document_ = FPDF_CreateNewDocument();
   if (!document_)
     return false;
 
   SetupFormFillEnvironment();
   return true;
@@ skipping 206 matching lines @@
 }
 
 // Can't use gtest-provided main since we need to stash the path to the
 // executable in order to find the external V8 binary data files.
 int main(int argc, char** argv) {
   g_exe_path_ = argv[0];
   testing::InitGoogleTest(&argc, argv);
   testing::InitGoogleMock(&argc, argv);
   return RUN_ALL_TESTS();
 }