Revert of Added PrintingContext::Delegate to get parent view handle and application locale. (patchset #13 of https://codereview.chromium.org/478183005/)

Reason for revert:
PrintJobTest.SimplePrint leaking on Linux ASAN bots since this was checked in:

http://build.chromium.org/p/chromium.memory/builders/Linux%20ASan%20LSan%20Tests%20%282%29?numbuilds=100

This CL looks like the likeliest culprit.

Original issue's description:
> Added PrintingContext::Delegate to get parent view handle and application locale.
>
> BUG=374321
>
> Committed: https://chromium.googlesource.com/chromium/src/+/ee8f4e4029c09ba77e7dbb8fddd85186642b3de8

TBR=noamsml@chromium.org,inferno@chromium.org,yzshen@chromium.org,thestig@chromium.org,jschuh@chromium.org,vitalybuka@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=374321

Review URL: https://codereview.chromium.org/504763002

Cr-Commit-Position: refs/heads/master@{#291654}

1 files changed, 4 insertions, 8 deletions

diff --git a/printing/emf_win_unittest.cc b/printing/emf_win_unittest.cc
index ec65c28..8a5daaf 100644
--- a/printing/emf_win_unittest.cc
+++ b/printing/emf_win_unittest.cc
@@ -22,13 +22,11 @@
 #include "ui/gfx/point.h"
 #include "ui/gfx/size.h"
 
-namespace printing {
-
 namespace {
 
 // This test is automatically disabled if no printer named "UnitTest Printer" is
 // available.
-class EmfPrintingTest : public testing::Test, public PrintingContext::Delegate {
+class EmfPrintingTest : public testing::Test {
  public:
   typedef testing::Test Parent;
   static bool IsTestCaseDisabled() {
@@ -39,16 +37,14 @@ class EmfPrintingTest : public testing::Test, public PrintingContext::Delegate {
     DeleteDC(hdc);
     return false;
   }
-
-  // PrintingContext::Delegate methods.
-  virtual gfx::NativeView GetParentView() OVERRIDE { return NULL; }
-  virtual std::string GetAppLocale() OVERRIDE { return std::string(); }
 };
 
 const uint32 EMF_HEADER_SIZE = 128;
 
 }  // namespace
 
+namespace printing {
+
 TEST(EmfTest, DC) {
   // Simplest use case.
   uint32 size;
@@ -87,7 +83,7 @@ TEST_F(EmfPrintingTest, Enumerate) {
   settings.set_device_name(L"UnitTest Printer");
 
   // Initialize it.
-  scoped_ptr<PrintingContext> context(PrintingContext::Create(this));
+  scoped_ptr<PrintingContext> context(PrintingContext::Create(std::string()));
   EXPECT_EQ(context->InitWithSettings(settings), PrintingContext::OK);
 
   base::FilePath emf_file;