Limit dependencies in memory_mapped_file.{cc,h} and memory_mapped_file_win.cc

We do not need READ_CODE_IMAGE.
This removes a dependency on pe_image.{cc,h}.
---
 base/files/memory_mapped_file.cc     | 4 ++++
 base/files/memory_mapped_file.h      | 2 ++
 base/files/memory_mapped_file_win.cc | 8 ++++++++
 3 files changed, 14 insertions(+)

diff --git a/base/files/memory_mapped_file.cc b/base/files/memory_mapped_file.cc
index 132c3a98240f..a62cdacd29a9 100644
--- a/base/files/memory_mapped_file.cc
+++ b/base/files/memory_mapped_file.cc
@@ -48,12 +48,14 @@ bool MemoryMappedFile::Initialize(const FilePath& file_name, Access access) {
       // Can't open with "extend" because no maximum size is known.
       NOTREACHED();
       break;
+#if !defined(MOZ_ZUCCHINI)
 #if BUILDFLAG(IS_WIN)
     case READ_CODE_IMAGE:
       flags |= File::FLAG_OPEN | File::FLAG_READ |
                File::FLAG_WIN_EXCLUSIVE_WRITE | File::FLAG_WIN_EXECUTE;
       break;
 #endif
+#endif  // !defined(MOZ_ZUCCHINI)
   }
   file_.Initialize(file_name, flags);
 
@@ -98,6 +100,7 @@ bool MemoryMappedFile::Initialize(File file,
         return false;
       }
       break;
+#if !defined(MOZ_ZUCCHINI)
 #if BUILDFLAG(IS_WIN)
     case READ_CODE_IMAGE:
       // Can't open with "READ_CODE_IMAGE", not supported outside Windows
@@ -105,6 +108,7 @@ bool MemoryMappedFile::Initialize(File file,
       NOTREACHED();
       break;
 #endif
+#endif  // !defined(MOZ_ZUCCHINI)
   }
 
   if (IsValid())
diff --git a/base/files/memory_mapped_file.h b/base/files/memory_mapped_file.h
index d099ce42ba60..542403c713af 100644
--- a/base/files/memory_mapped_file.h
+++ b/base/files/memory_mapped_file.h
@@ -47,6 +47,7 @@ class BASE_EXPORT MemoryMappedFile {
     // in the process address space.
     READ_WRITE_EXTEND,
 
+#if !defined(MOZ_ZUCCHINI)
 #if BUILDFLAG(IS_WIN)
     // This provides read access, but as executable code used for prefetching
     // DLLs into RAM to avoid inefficient hard fault patterns such as during
@@ -54,6 +55,7 @@ class BASE_EXPORT MemoryMappedFile {
     // the file is read into memory (if needed).
     READ_CODE_IMAGE,
 #endif
+#endif  // !defined(MOZ_ZUCCHINI)
   };
 
   // The default constructor sets all members to invalid/null values.
diff --git a/base/files/memory_mapped_file_win.cc b/base/files/memory_mapped_file_win.cc
index 7169fba5a685..9943773bec40 100644
--- a/base/files/memory_mapped_file_win.cc
+++ b/base/files/memory_mapped_file_win.cc
@@ -14,7 +14,9 @@
 #include "base/logging.h"
 #include "base/numerics/checked_math.h"
 #include "base/threading/scoped_blocking_call.h"
+#if !defined(MOZ_ZUCCHINI)
 #include "base/win/pe_image.h"
+#endif  // !defined(MOZ_ZUCCHINI)
 
 #include <windows.h>
 #include <winnt.h>  // NOLINT(build/include_order)
@@ -23,6 +25,7 @@ namespace base {
 
 MemoryMappedFile::MemoryMappedFile() = default;
 
+#if !defined(MOZ_ZUCCHINI)
 bool MemoryMappedFile::MapImageToMemory(Access access) {
   ScopedBlockingCall scoped_blocking_call(FROM_HERE, BlockingType::MAY_BLOCK);
 
@@ -51,13 +54,16 @@ bool MemoryMappedFile::MapImageToMemory(Access access) {
 
   return true;
 }
+#endif  // !defined(MOZ_ZUCCHINI)
 
 bool MemoryMappedFile::MapFileRegionToMemory(
     const MemoryMappedFile::Region& region,
     Access access) {
   ScopedBlockingCall scoped_blocking_call(FROM_HERE, BlockingType::MAY_BLOCK);
 
+#if !defined(MOZ_ZUCCHINI)
   DCHECK(access != READ_CODE_IMAGE || region == Region::kWholeFile);
+#endif  // !defined(MOZ_ZUCCHINI)
 
   if (!file_.IsValid())
     return false;
@@ -75,8 +81,10 @@ bool MemoryMappedFile::MapFileRegionToMemory(
       flags |= PAGE_READWRITE;
       size.QuadPart = region.size;
       break;
+#if !defined(MOZ_ZUCCHINI)
     case READ_CODE_IMAGE:
       return MapImageToMemory(access);
+#endif  // !defined(MOZ_ZUCCHINI)
   }
 
   file_mapping_.Set(::CreateFileMapping(file_.GetPlatformFile(), NULL, flags,
-- 
2.42.0.windows.2