Reland "Move webrtc/{base => rtc_base}" (https://codereview.webrtc.org/2877023002)

Reland the base->rtc_base without adding stub headers (will be
done in follow-up CL). This preserves git blame history of all files.

BUG=webrtc:7634
NOTRY=True
TBR=kwiberg@webrtc.org

Change-Id: Iea3bb6f3f67b8374c96337b63e8f5aa3e6181012
Reviewed-on: https://chromium-review.googlesource.com/554611
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#18821}

webrtc/rtc_base/win32window_unittest.cc

@@ -0,0 +1,65 @@
+/*
+ *  Copyright 2009 The WebRTC 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 in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "webrtc/base/gunit.h"
+#include "webrtc/base/win32window.h"
+#include "webrtc/base/logging.h"
+
+static LRESULT kDummyResult = 0x1234ABCD;
+
+class TestWindow : public rtc::Win32Window {
+ public:
+  TestWindow() : destroyed_(false) { memset(&msg_, 0, sizeof(msg_)); }
+  const MSG& msg() const { return msg_; }
+  bool destroyed() const { return destroyed_; }
+
+  virtual bool OnMessage(UINT uMsg, WPARAM wParam,
+                         LPARAM lParam, LRESULT& result) {
+    msg_.message = uMsg;
+    msg_.wParam = wParam;
+    msg_.lParam = lParam;
+    result = kDummyResult;
+    return true;
+  }
+  virtual void OnNcDestroy() {
+    destroyed_ = true;
+  }
+
+ private:
+  MSG msg_;
+  bool destroyed_;
+};
+
+TEST(Win32WindowTest, Basics) {
+  TestWindow wnd;
+  EXPECT_TRUE(wnd.handle() == nullptr);
+  EXPECT_FALSE(wnd.destroyed());
+  EXPECT_TRUE(wnd.Create(0, L"Test", 0, 0, 0, 0, 100, 100));
+  EXPECT_TRUE(wnd.handle() != nullptr);
+  EXPECT_EQ(kDummyResult, ::SendMessage(wnd.handle(), WM_USER, 1, 2));
+  EXPECT_EQ(static_cast<UINT>(WM_USER), wnd.msg().message);
+  EXPECT_EQ(1u, wnd.msg().wParam);
+  EXPECT_EQ(2l, wnd.msg().lParam);
+  wnd.Destroy();
+  EXPECT_TRUE(wnd.handle() == nullptr);
+  EXPECT_TRUE(wnd.destroyed());
+}
+
+TEST(Win32WindowTest, MultipleWindows) {
+  TestWindow wnd1, wnd2;
+  EXPECT_TRUE(wnd1.Create(0, L"Test", 0, 0, 0, 0, 100, 100));
+  EXPECT_TRUE(wnd2.Create(0, L"Test", 0, 0, 0, 0, 100, 100));
+  EXPECT_TRUE(wnd1.handle() != nullptr);
+  EXPECT_TRUE(wnd2.handle() != nullptr);
+  wnd1.Destroy();
+  wnd2.Destroy();
+  EXPECT_TRUE(wnd2.handle() == nullptr);
+  EXPECT_TRUE(wnd1.handle() == nullptr);
+}