Refactor FileVersionInfo into an interface with platform implementations.

base/file_version_info_mac.mm

Index: base/file_version_info_mac.mm
diff --git a/base/file_version_info_mac.mm b/base/file_version_info_mac.mm
index c1395dffa228739f1763b25d4e263a4e2beafcdf..2218226e4466399693f6aaaeb4e89f245e2fd785 100644
--- a/base/file_version_info_mac.mm
+++ b/base/file_version_info_mac.mm
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "base/file_version_info.h"
+#include "base/file_version_info_mac.h"
 
 #import <Cocoa/Cocoa.h>
 
@@ -11,11 +11,11 @@
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 
-FileVersionInfo::FileVersionInfo(NSBundle *bundle) : bundle_(bundle) {
+FileVersionInfoMac::FileVersionInfoMac(NSBundle *bundle) : bundle_(bundle) {
   [bundle_ retain];
 }
 
-FileVersionInfo::~FileVersionInfo() {
+FileVersionInfoMac::~FileVersionInfoMac() {
   [bundle_ release];
 }
 
@@ -24,7 +24,7 @@ FileVersionInfo* FileVersionInfo::CreateFileVersionInfoForCurrentModule() {
   // TODO(erikkay): this should really use bundleForClass, but we don't have
   // a class to hang onto yet.
   NSBundle* bundle = [NSBundle mainBundle];
-  return new FileVersionInfo(bundle);
+  return new FileVersionInfoMac(bundle);
 }
 
 // static
@@ -33,77 +33,77 @@ FileVersionInfo* FileVersionInfo::CreateFileVersionInfo(
   NSString* path = [NSString stringWithCString:
       reinterpret_cast<const char*>(file_path.c_str())
         encoding:NSUTF32StringEncoding];
-  return new FileVersionInfo([NSBundle bundleWithPath:path]);
+  return new FileVersionInfoMac([NSBundle bundleWithPath:path]);
 }
 
 // static
 FileVersionInfo* FileVersionInfo::CreateFileVersionInfo(
     const FilePath& file_path) {
   NSString* path = [NSString stringWithUTF8String:file_path.value().c_str()];
-  return new FileVersionInfo([NSBundle bundleWithPath:path]);
+  return new FileVersionInfoMac([NSBundle bundleWithPath:path]);
 }
 
-std::wstring FileVersionInfo::company_name() {
+std::wstring FileVersionInfoMac::company_name() {
   return std::wstring();
 }
 
-std::wstring FileVersionInfo::company_short_name() {
+std::wstring FileVersionInfoMac::company_short_name() {
   return std::wstring();
 }
 
-std::wstring FileVersionInfo::internal_name() {
+std::wstring FileVersionInfoMac::internal_name() {
   return std::wstring();
 }
 
-std::wstring FileVersionInfo::product_name() {
+std::wstring FileVersionInfoMac::product_name() {
   return GetStringValue(L"CFBundleName");
 }
 
-std::wstring FileVersionInfo::product_short_name() {
+std::wstring FileVersionInfoMac::product_short_name() {
   return GetStringValue(L"CFBundleName");
 }
 
-std::wstring FileVersionInfo::comments() {
+std::wstring FileVersionInfoMac::comments() {
   return std::wstring();
 }
 
-std::wstring FileVersionInfo::legal_copyright() {
+std::wstring FileVersionInfoMac::legal_copyright() {
   return GetStringValue(L"CFBundleGetInfoString");
 }
 
-std::wstring FileVersionInfo::product_version() {
+std::wstring FileVersionInfoMac::product_version() {
   return GetStringValue(L"CFBundleShortVersionString");
 }
 
-std::wstring FileVersionInfo::file_description() {
+std::wstring FileVersionInfoMac::file_description() {
   return std::wstring();
 }
 
-std::wstring FileVersionInfo::legal_trademarks() {
+std::wstring FileVersionInfoMac::legal_trademarks() {
   return std::wstring();
 }
 
-std::wstring FileVersionInfo::private_build() {
+std::wstring FileVersionInfoMac::private_build() {
   return std::wstring();
 }
 
-std::wstring FileVersionInfo::file_version() {
+std::wstring FileVersionInfoMac::file_version() {
   return product_version();
 }
 
-std::wstring FileVersionInfo::original_filename() {
+std::wstring FileVersionInfoMac::original_filename() {
   return GetStringValue(L"CFBundleName");
 }
 
-std::wstring FileVersionInfo::special_build() {
+std::wstring FileVersionInfoMac::special_build() {
   return std::wstring();
 }
 
-std::wstring FileVersionInfo::last_change() {
+std::wstring FileVersionInfoMac::last_change() {
   return GetStringValue(L"SVNRevision");
 }
 
-bool FileVersionInfo::is_official_build() {
+bool FileVersionInfoMac::is_official_build() {
 #if defined (GOOGLE_CHROME_BUILD)
   return true;
 #else
@@ -111,7 +111,8 @@ bool FileVersionInfo::is_official_build() {
 #endif
 }
 
-bool FileVersionInfo::GetValue(const wchar_t* name, std::wstring* value_str) {
+bool FileVersionInfoMac::GetValue(const wchar_t* name,
+                                  std::wstring* value_str) {
   if (bundle_) {
     NSString* value = [bundle_ objectForInfoDictionaryKey:
         [NSString stringWithUTF8String:WideToUTF8(name).c_str()]];
@@ -124,7 +125,7 @@ bool FileVersionInfo::GetValue(const wchar_t* name, std::wstring* value_str) {
   return false;
 }
 
-std::wstring FileVersionInfo::GetStringValue(const wchar_t* name) {
+std::wstring FileVersionInfoMac::GetStringValue(const wchar_t* name) {
   std::wstring str;
   if (GetValue(name, &str))
     return str;