[MediaRouter] Replace RouteMessage with PresentationConnectionMessage

content/public/common/presentation_connection_message.cc

Index: content/public/common/presentation_connection_message.cc
diff --git a/content/public/common/presentation_connection_message.cc b/content/public/common/presentation_connection_message.cc
index 222e2141ac37ace61f429447d9bac1ebe52d5003..41fc20117a0a03800a1572686d441017e37e4b7e 100644
--- a/content/public/common/presentation_connection_message.cc
+++ b/content/public/common/presentation_connection_message.cc
@@ -23,7 +23,13 @@ PresentationConnectionMessage::PresentationConnectionMessage(
     : data(std::move(data)) {}
 
 PresentationConnectionMessage::PresentationConnectionMessage(
-    PresentationConnectionMessage&& other) = default;
+    const PresentationConnectionMessage& other) = default;
+
+// Note: "move constructor noexcept = default" currently does not compile on
+// Windows and Android (crbug.com/706963).
+PresentationConnectionMessage::PresentationConnectionMessage(
+    PresentationConnectionMessage&& other) noexcept
+    : message(std::move(other.message)), data(std::move(other.data)) {}
 
 PresentationConnectionMessage::~PresentationConnectionMessage() {}
 
@@ -32,6 +38,9 @@ bool PresentationConnectionMessage::operator==(
   return this->data == other.data && this->message == other.message;
 }
 
+PresentationConnectionMessage& PresentationConnectionMessage::operator=(
+    const PresentationConnectionMessage& other) = default;
+
 PresentationConnectionMessage& PresentationConnectionMessage::operator=(
     PresentationConnectionMessage&& other) = default;