Roll V8 and its deps and update ICU initialization call

testing/test_support.h

 // 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.
 
 #ifndef TESTING_TEST_SUPPORT_H_
 #define TESTING_TEST_SUPPORT_H_
 
 #include <stdlib.h>
 #include <memory>
 #include <string>
@@ skipping 65 matching lines @@
     const std::wstring& wstr);
 
 #ifdef PDF_ENABLE_V8
 #ifdef V8_USE_EXTERNAL_STARTUP_DATA
 bool InitializeV8ForPDFium(const std::string& exe_path,
                            const std::string& bin_dir,
                            v8::StartupData* natives_blob,
                            v8::StartupData* snapshot_blob,
                            v8::Platform** platform);
 #else   // V8_USE_EXTERNAL_STARTUP_DATA
-bool InitializeV8ForPDFium(v8::Platform** platform);
+bool InitializeV8ForPDFium(const std::string& exe_path,
+                           v8::Platform** platform);
 #endif  // V8_USE_EXTERNAL_STARTUP_DATA
 #endif  // PDF_ENABLE_V8
 
 class TestLoader {
  public:
   TestLoader(const char* pBuf, size_t len);
   static int GetBlock(void* param,
                       unsigned long pos,
                       unsigned char* pBuf,
                       unsigned long size);
@@ skipping 12 matching lines @@
 
  private:
   static int WriteBlockCallback(FPDF_FILEWRITE* pFileWrite,
                                 const void* data,
                                 unsigned long size);
 
   std::string m_String;
 };
 
 #endif  // TESTING_TEST_SUPPORT_H_