base: Discardable memory types.

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index 56a15b0aa4251f597a948644485fcb271996e77f..8a0452a8fd7cb21653535dc7e41ddd76829f9a81 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -406,6 +406,20 @@ void RenderThreadImpl::Init() {
 
   renderer_process_id_ = base::kNullProcessId;
 
+  if (command_line.HasSwitch(switches::kUseDiscardableMemory)) {
+    std::string requested_type_name = command_line.GetSwitchValueASCII(
+        switches::kUseDiscardableMemory);
+    if (requested_type_name == "none") {
+      base::DiscardableMemory::SetType(DISCARDABLE_MEMORY_NONE);
+    } else if (requested_type_name == "android") {
+      base::DiscardableMemory::SetType(DISCARDABLE_MEMORY_ANDROID);
+    } else if (requested_type_name == "mac") {
+      base::DiscardableMemory::SetType(DISCARDABLE_MEMORY_MAC);
+    } else if (requested_type_name == "emulated") {
+      base::DiscardableMemory::SetType(DISCARDABLE_MEMORY_EMULATED);
+    }
+  }
+
   // AllocateGpuMemoryBuffer must be used exclusively on one thread but
   // it doesn't have to be the same thread RenderThreadImpl is created on.
   allocate_gpu_memory_buffer_thread_checker_.DetachFromThread();