[inspector] fixed all shorten-64-to-32 warnings

include/v8-inspector.h

 // Copyright 2016 the V8 project 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 V8_V8_INSPECTOR_H_
 #define V8_V8_INSPECTOR_H_
 
 #include <stdint.h>
 #include <cctype>
 
@@ skipping 19 matching lines @@
 namespace API {
 class Domain;
 }
 }
 }  // namespace protocol
 
 class V8_EXPORT StringView {
  public:
   StringView() : m_is8Bit(true), m_length(0), m_characters8(nullptr) {}
 
-  StringView(const uint8_t* characters, unsigned length)
+  StringView(const uint8_t* characters, size_t length)
       : m_is8Bit(true), m_length(length), m_characters8(characters) {}
 
-  StringView(const uint16_t* characters, unsigned length)
+  StringView(const uint16_t* characters, size_t length)
       : m_is8Bit(false), m_length(length), m_characters16(characters) {}
 
   bool is8Bit() const { return m_is8Bit; }
-  unsigned length() const { return m_length; }
+  size_t length() const { return m_length; }
 
   // TODO(dgozman): add DCHECK(m_is8Bit) to accessors once platform can be used
   // here.
   const uint8_t* characters8() const { return m_characters8; }
   const uint16_t* characters16() const { return m_characters16; }
 
  private:
   bool m_is8Bit;
-  unsigned m_length;
+  size_t m_length;
   union {
     const uint8_t* m_characters8;
     const uint16_t* m_characters16;
   };
 };
 
 class V8_EXPORT StringBuffer {
  public:
   virtual ~StringBuffer() {}
   virtual const StringView& string() = 0;
@@ skipping 191 matching lines @@
 
   // API methods.
   virtual std::unique_ptr<V8StackTrace> createStackTrace(
       v8::Local<v8::StackTrace>) = 0;
   virtual std::unique_ptr<V8StackTrace> captureStackTrace(bool fullStack) = 0;
 };
 
 }  // namespace v8_inspector
 
 #endif  // V8_V8_INSPECTOR_H_