Rename chromium_testshell target to chrome_shell_apk.

build/android/adb_gdb_chrome_shell

Index: build/android/adb_gdb_chrome_shell
diff --git a/build/android/adb_gdb_chromium_testshell b/build/android/adb_gdb_chrome_shell
similarity index 79%
rename from build/android/adb_gdb_chromium_testshell
rename to build/android/adb_gdb_chrome_shell
index 1334c9b593fcb7ba28d5137a839927a9332e453f..0b761140f847e07e4dedbe70db25b668ced6c5bb 100755
--- a/build/android/adb_gdb_chromium_testshell
+++ b/build/android/adb_gdb_chrome_shell
@@ -4,13 +4,13 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 #
-# Attach to or start a ChromiumTestShell process and debug it.
+# Attach to or start a ChromeShell process and debug it.
 # See --help for details.
 #
 PROGDIR=$(dirname "$0")
 export ADB_GDB_PROGNAME=$(basename "$0")
 export ADB_GDB_ACTIVITY=.ChromeShellActivity
 "$PROGDIR"/adb_gdb \
-    --program-name=ChromiumTestShell \
+    --program-name=ChromeShell \
     --package-name=org.chromium.chrome.shell \
     "$@"