Add implicit conversion operator to std::string_view

android::base::Trim has been updated to take a std::string_view instead
of a const std::string&. Remove explicit conversions to std::string for
Trim arguments so that we do not create a unnecessary copies for the T ->
std::string conversion, only to implicitly convert from std::string ->
std::string_view immediately after.

Bug: N/A
Test: Still builds
Change-Id: Ib3db6f652f5a2b84f89cf130e3cf4a7acf9f185b
diff --git a/media/mtp/MtpServer.cpp b/media/mtp/MtpServer.cpp
index 6fcf119..d917772 100644
--- a/media/mtp/MtpServer.cpp
+++ b/media/mtp/MtpServer.cpp
@@ -985,7 +985,7 @@
 
     int type = storage->getType();
     if (type == MTP_STORAGE_REMOVABLE_RAM) {
-        std::string str = android::base::Trim((const char*)name);
+        std::string str = android::base::Trim(name);
         name.set(str.c_str());
     }
     ALOGV("name: %s format: 0x%04X (%s)\n", (const char*)name, format,