Revert of Move gpu memory calculations to Compositor.

cc/output/output_surface_unittest.cc

 // Copyright 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 "cc/output/output_surface.h"
 
 #include "base/test/test_simple_task_runner.h"
 #include "cc/output/managed_memory_policy.h"
 #include "cc/output/output_surface_client.h"
 #include "cc/output/software_output_device.h"
@@ skipping 134 matching lines @@
   worker_context_provider->UnboundTestContext3d()->set_context_lost(true);
 
   TestOutputSurface output_surface(context_provider, worker_context_provider);
   EXPECT_FALSE(output_surface.HasClient());
 
   FakeOutputSurfaceClient client;
   EXPECT_FALSE(output_surface.BindToClient(&client));
   EXPECT_FALSE(output_surface.HasClient());
 }
 
+TEST(OutputSurfaceTest, MemoryAllocation) {
+  scoped_refptr<TestContextProvider> context_provider =
+      TestContextProvider::Create();
+
+  TestOutputSurface output_surface(context_provider);
+
+  FakeOutputSurfaceClient client;
+  EXPECT_TRUE(output_surface.BindToClient(&client));
+
+  ManagedMemoryPolicy policy(0);
+  policy.bytes_limit_when_visible = 1234;
+  policy.priority_cutoff_when_visible =
+      gpu::MemoryAllocation::CUTOFF_ALLOW_REQUIRED_ONLY;
+
+  context_provider->SetMemoryAllocation(policy);
+  EXPECT_EQ(1234u, client.memory_policy().bytes_limit_when_visible);
+  EXPECT_EQ(gpu::MemoryAllocation::CUTOFF_ALLOW_REQUIRED_ONLY,
+            client.memory_policy().priority_cutoff_when_visible);
+
+  policy.priority_cutoff_when_visible =
+      gpu::MemoryAllocation::CUTOFF_ALLOW_EVERYTHING;
+  context_provider->SetMemoryAllocation(policy);
+  EXPECT_EQ(gpu::MemoryAllocation::CUTOFF_ALLOW_EVERYTHING,
+            client.memory_policy().priority_cutoff_when_visible);
+
+  // 0 bytes limit should be ignored.
+  policy.bytes_limit_when_visible = 0;
+  context_provider->SetMemoryAllocation(policy);
+  EXPECT_EQ(1234u, client.memory_policy().bytes_limit_when_visible);
+}
+
 TEST(OutputSurfaceTest, SoftwareOutputDeviceBackbufferManagement) {
   TestSoftwareOutputDevice* software_output_device =
       new TestSoftwareOutputDevice();
 
   // TestOutputSurface now owns software_output_device and has responsibility to
   // free it.
   TestOutputSurface output_surface(make_scoped_ptr(software_output_device));
 
   EXPECT_EQ(0, software_output_device->ensure_backbuffer_count());
   EXPECT_EQ(0, software_output_device->discard_backbuffer_count());
 
   output_surface.EnsureBackbuffer();
   EXPECT_EQ(1, software_output_device->ensure_backbuffer_count());
   EXPECT_EQ(0, software_output_device->discard_backbuffer_count());
   output_surface.DiscardBackbuffer();
 
   EXPECT_EQ(1, software_output_device->ensure_backbuffer_count());
   EXPECT_EQ(1, software_output_device->discard_backbuffer_count());
 }
 
 }  // namespace
 }  // namespace cc