Add tests for MemoryCoordinator::Can{Throttle,Suspend}Renderer()

content/browser/memory/memory_coordinator_unittest.cc

 // Copyright 2016 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 "content/browser/memory/memory_coordinator.h"
 
 #include "base/memory/memory_pressure_monitor.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "mojo/public/cpp/bindings/binding.h"
@@ skipping 75 matching lines @@
 // Test fixture.
 class MemoryCoordinatorTest : public testing::Test {
  private:
   // Needed for mojo.
   base::MessageLoop message_loop_;
 };
 
 TEST_F(MemoryCoordinatorTest, ChildRemovedOnConnectionError) {
   TestMemoryCoordinator mc;
   mc.CreateChildMemoryCoordinator(1);
-  ASSERT_EQ(1u, mc.NumChildrenForTesting());
+  ASSERT_EQ(1u, mc.children().size());
   mc.OnConnectionError(1);
-  EXPECT_EQ(0u, mc.NumChildrenForTesting());
+  EXPECT_EQ(0u, mc.children().size());
 }
 
 TEST_F(MemoryCoordinatorTest, SetMemoryStateFailsInvalidState) {
   TestMemoryCoordinator mc;
   auto cmc1 = mc.CreateChildMemoryCoordinator(1);
 
   EXPECT_FALSE(mc.SetChildMemoryState(1, mojom::MemoryState::UNKNOWN));
   EXPECT_EQ(0, cmc1->on_state_change_calls());
 }
 
@@ skipping 21 matching lines @@
   EXPECT_TRUE(mc.SetChildMemoryState(1, mojom::MemoryState::THROTTLED));
   EXPECT_EQ(1, cmc1->on_state_change_calls());
   EXPECT_EQ(mojom::MemoryState::THROTTLED, cmc1->state());
 
   EXPECT_TRUE(mc.SetChildMemoryState(2, mojom::MemoryState::SUSPENDED));
   EXPECT_EQ(1, cmc2->on_state_change_calls());
   EXPECT_EQ(mojom::MemoryState::SUSPENDED, cmc2->state());
 }
 
 }  // namespace content