Revert "Forward declaration for Isolate / Platform in libplatform.h." and...

Revert "Forward declaration for Isolate / Platform in libplatform.h." and "Fixes d8 on windows following.".

This reverts commit 0f57ce8f.
and 3245b8cb for breaking Chromium
compile.

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/743533003

Cr-Commit-Position: refs/heads/master@{#25411}

include/libplatform/libplatform.h

@@ -5,11 +5,9 @@
 #ifndef V8_LIBPLATFORM_LIBPLATFORM_H_
 #define V8_LIBPLATFORM_LIBPLATFORM_H_
 
-namespace v8 {
-
-class Isolate;
-class Platform;
+#include "include/v8-platform.h"
 
+namespace v8 {
 namespace platform {
 
 /**

samples/lineprocessor.cc

@@ -29,7 +29,6 @@
 
 #include <include/libplatform/libplatform.h>
 #include <include/v8-debug.h>
-#include <include/v8-platform.h>
 
 #include <fcntl.h>
 #include <stdio.h>

samples/shell.cc

@@ -28,7 +28,6 @@
 #include <include/v8.h>
 
 #include <include/libplatform/libplatform.h>
-#include <include/v8-platform.h>
 
 #include <assert.h>
 #include <fcntl.h>

src/d8.cc

@@ -40,8 +40,6 @@
 #include "src/d8.h"
 
 #include "include/libplatform/libplatform.h"
-#include "include/v8-platform.h"
-
 #ifndef V8_SHARED
 #include "src/api.h"
 #include "src/base/cpu.h"

test/unittests/run-all-unittests.cc

@@ -4,7 +4,6 @@
 
 #include "include/libplatform/libplatform.h"
 #include "include/v8.h"
-#include "include/v8-platform.h"
 #include "src/base/compiler-specific.h"
 #include "testing/gmock/include/gmock/gmock.h"