Deleted OS_WIN and all Windows specific files from base.

base/debug/profiler.cc

Index: base/debug/profiler.cc
diff --git a/base/debug/profiler.cc b/base/debug/profiler.cc
index ed553cdf2939ea68d6ccb7dac4e84aacec7955e2..61148e5c5548d74298338c7421a68d75ebdba1c4 100644
--- a/base/debug/profiler.cc
+++ b/base/debug/profiler.cc
@@ -10,12 +10,8 @@
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 
-#if defined(OS_WIN)
-#include "base/win/pe_image.h"
-#endif  // defined(OS_WIN)
-
 // TODO(peria): Enable profiling on Windows.
-#if defined(ENABLE_PROFILING) && !defined(NO_TCMALLOC) && !defined(OS_WIN)
+#if defined(ENABLE_PROFILING) && !defined(NO_TCMALLOC)
 #include "third_party/tcmalloc/chromium/src/gperftools/profiler.h"
 #endif
 
@@ -23,7 +19,7 @@ namespace base {
 namespace debug {
 
 // TODO(peria): Enable profiling on Windows.
-#if defined(ENABLE_PROFILING) && !defined(NO_TCMALLOC) && !defined(OS_WIN)
+#if defined(ENABLE_PROFILING) && !defined(NO_TCMALLOC)
 
 static int profile_count = 0;
 
@@ -74,8 +70,6 @@ void RestartProfilingAfterFork() {
 
 #endif
 
-#if !defined(OS_WIN)
-
 bool IsBinaryInstrumented() {
   return false;
 }
@@ -96,124 +90,6 @@ MoveDynamicSymbol GetProfilerMoveDynamicSymbolFunc() {
   return NULL;
 }
 
-#else  // defined(OS_WIN)
-
-// http://blogs.msdn.com/oldnewthing/archive/2004/10/25/247180.aspx
-extern "C" IMAGE_DOS_HEADER __ImageBase;
-
-bool IsBinaryInstrumented() {
-  enum InstrumentationCheckState {
-    UNINITIALIZED,
-    INSTRUMENTED_IMAGE,
-    NON_INSTRUMENTED_IMAGE,
-  };
-
-  static InstrumentationCheckState state = UNINITIALIZED;
-
-  if (state == UNINITIALIZED) {
-    HMODULE this_module = reinterpret_cast<HMODULE>(&__ImageBase);
-    base::win::PEImage image(this_module);
-
-    // Check to be sure our image is structured as we'd expect.
-    DCHECK(image.VerifyMagic());
-
-    // Syzygy-instrumented binaries contain a PE image section named ".thunks",
-    // and all Syzygy-modified binaries contain the ".syzygy" image section.
-    // This is a very fast check, as it only looks at the image header.
-    if ((image.GetImageSectionHeaderByName(".thunks") != NULL) &&
-        (image.GetImageSectionHeaderByName(".syzygy") != NULL)) {
-      state = INSTRUMENTED_IMAGE;
-    } else {
-      state = NON_INSTRUMENTED_IMAGE;
-    }
-  }
-  DCHECK(state != UNINITIALIZED);
-
-  return state == INSTRUMENTED_IMAGE;
-}
-
-namespace {
-
-struct FunctionSearchContext {
-  const char* name;
-  FARPROC function;
-};
-
-// Callback function to PEImage::EnumImportChunks.
-bool FindResolutionFunctionInImports(
-    const base::win::PEImage &image, const char* module_name,
-    PIMAGE_THUNK_DATA unused_name_table, PIMAGE_THUNK_DATA import_address_table,
-    PVOID cookie) {
-  FunctionSearchContext* context =
-      reinterpret_cast<FunctionSearchContext*>(cookie);
-
-  DCHECK_NE(static_cast<FunctionSearchContext*>(NULL), context);
-  DCHECK_EQ(static_cast<FARPROC>(NULL), context->function);
-
-  // Our import address table contains pointers to the functions we import
-  // at this point. Let's retrieve the first such function and use it to
-  // find the module this import was resolved to by the loader.
-  const wchar_t* function_in_module =
-      reinterpret_cast<const wchar_t*>(import_address_table->u1.Function);
-
-  // Retrieve the module by a function in the module.
-  const DWORD kFlags = GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS |
-                       GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT;
-  HMODULE module = NULL;
-  if (!::GetModuleHandleEx(kFlags, function_in_module, &module)) {
-    // This can happen if someone IAT patches us to a thunk.
-    return true;
-  }
-
-  // See whether this module exports the function we're looking for.
-  FARPROC exported_func = ::GetProcAddress(module, context->name);
-  if (exported_func != NULL) {
-    // We found it, return the function and terminate the enumeration.
-    context->function = exported_func;
-    return false;
-  }
-
-  // Keep going.
-  return true;
-}
-
-template <typename FunctionType>
-FunctionType FindFunctionInImports(const char* function_name) {
-  if (!IsBinaryInstrumented())
-    return NULL;
-
-  HMODULE this_module = reinterpret_cast<HMODULE>(&__ImageBase);
-  base::win::PEImage image(this_module);
-
-  FunctionSearchContext ctx = { function_name, NULL };
-  image.EnumImportChunks(FindResolutionFunctionInImports, &ctx);
-
-  return reinterpret_cast<FunctionType>(ctx.function);
-}
-
-}  // namespace
-
-ReturnAddressLocationResolver GetProfilerReturnAddrResolutionFunc() {
-  return FindFunctionInImports<ReturnAddressLocationResolver>(
-      "ResolveReturnAddressLocation");
-}
-
-DynamicFunctionEntryHook GetProfilerDynamicFunctionEntryHookFunc() {
-  return FindFunctionInImports<DynamicFunctionEntryHook>(
-      "OnDynamicFunctionEntry");
-}
-
-AddDynamicSymbol GetProfilerAddDynamicSymbolFunc() {
-  return FindFunctionInImports<AddDynamicSymbol>(
-      "AddDynamicSymbol");
-}
-
-MoveDynamicSymbol GetProfilerMoveDynamicSymbolFunc() {
-  return FindFunctionInImports<MoveDynamicSymbol>(
-      "MoveDynamicSymbol");
-}
-
-#endif  // defined(OS_WIN)
 
 }  // namespace debug
 }  // namespace base