Reworked the plumbing required to pass the client resolution to the desktop resizer.

remoting/host/screen_resolution_unittest.cc

+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "remoting/host/screen_resolution.h"
+
+#include <limits>
+
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace remoting {
+
+TEST(ScreenResolutionTest, Empty) {
+  ScreenResolution resolution;
+  EXPECT_TRUE(resolution.IsEmpty());
+
+  resolution.dimensions_.set(-1, 0);
+  EXPECT_TRUE(resolution.IsEmpty());
+
+  resolution.dimensions_.set(0, -1);
+  EXPECT_TRUE(resolution.IsEmpty());
+
+  resolution.dimensions_.set(-1, -1);
+  EXPECT_TRUE(resolution.IsEmpty());
+
+  resolution.dpi_.set(-1, 0);
+  EXPECT_TRUE(resolution.IsEmpty());
+
+  resolution.dpi_.set(0, -1);
+  EXPECT_TRUE(resolution.IsEmpty());
+
+  resolution.dpi_.set(-1, -1);
+  EXPECT_TRUE(resolution.IsEmpty());
+}
+
+TEST(ScreenResolutionTest, Invalid) {
+  ScreenResolution resolution;
+  EXPECT_TRUE(resolution.IsValid());
+
+  resolution.dimensions_.set(-1, 0);
+  EXPECT_FALSE(resolution.IsValid());
+
+  resolution.dimensions_.set(0, -1);
+  EXPECT_FALSE(resolution.IsValid());
+
+  resolution.dimensions_.set(-1, -1);
+  EXPECT_FALSE(resolution.IsValid());
+
+  resolution.dpi_.set(-1, 0);
+  EXPECT_FALSE(resolution.IsValid());
+
+  resolution.dpi_.set(0, -1);
+  EXPECT_FALSE(resolution.IsValid());
+
+  resolution.dpi_.set(-1, -1);
+  EXPECT_FALSE(resolution.IsValid());
+}
+
+TEST(ScreenResolutionTest, Scaling) {
+  ScreenResolution resolution(
+      SkISize::Make(100, 100), SkIPoint::Make(10, 10));
+
+  EXPECT_EQ(resolution.ScaleDimensionsToDpi(SkIPoint::Make(5, 5)),
+            SkISize::Make(50, 50));
+
+  EXPECT_EQ(resolution.ScaleDimensionsToDpi(SkIPoint::Make(20, 20)),
+            SkISize::Make(200, 200));
+}
+
+TEST(ScreenResolutionTest, ScalingSaturation) {
+  ScreenResolution resolution(
+      SkISize::Make(10000000, 1000000), SkIPoint::Make(1, 1));
+
+  EXPECT_EQ(resolution.ScaleDimensionsToDpi(SkIPoint::Make(1000000, 1000000)),
+            SkISize::Make(std::numeric_limits<int32>::max(),
+                          std::numeric_limits<int32>::max()));
+}
+
+}  // namespace remoting