Move MockPrinter to chrome/renderer/printing.

chrome/chrome_tests_unit.gypi

Index: chrome/chrome_tests_unit.gypi
diff --git a/chrome/chrome_tests_unit.gypi b/chrome/chrome_tests_unit.gypi
index a97c1b1f6ee537d3d4132f7dd5bca9f1844d32d7..76d918b942ec815ff80cf9d0b41dd40a77689573 100644
--- a/chrome/chrome_tests_unit.gypi
+++ b/chrome/chrome_tests_unit.gypi
@@ -211,8 +211,8 @@
         'renderer/chrome_mock_render_thread.h',
         'renderer/media/mock_webrtc_logging_message_filter.cc',
         'renderer/media/mock_webrtc_logging_message_filter.h',
-        'renderer/mock_printer.cc',
-        'renderer/mock_printer.h',
+        'renderer/printing/mock_printer.cc',
+        'renderer/printing/mock_printer.h',
         'renderer/safe_browsing/mock_feature_extractor_clock.cc',
         'renderer/safe_browsing/mock_feature_extractor_clock.h',
         'renderer/safe_browsing/test_utils.cc',
@@ -367,8 +367,8 @@
         }],
         ['enable_printing==0', {
           'sources/': [
-            ['exclude', '^renderer/mock_printer.cc'],
-            ['exclude', '^renderer/mock_printer.h'],
+            ['exclude', '^renderer/printing/mock_printer.cc'],
+            ['exclude', '^renderer/printing/mock_printer.h'],
           ],
         }],
         ['OS=="android"', {