Remove Pass() on Linux.

Pass() is a legacy of the original C++03 move emulation implementation.
New code should use std::move from <utility>. ChromeOS is exempt until the
migration there is complete.

❆(੭ु ◜◡‾)੭ु⁾☃❆

BUG=557422
R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1548273002 .

Cr-Commit-Position: refs/heads/master@{#367177}

base/memory/scoped_ptr_unittest.cc

@@ -11,6 +11,7 @@
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/macros.h"
+#include "build/build_config.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
@@ -401,6 +402,7 @@ TEST(ScopedPtrTest, MoveBehavior) {
     EXPECT_TRUE(scoper3.get());
   }
 
+#if !(defined(OS_LINUX) && !defined(OS_CHROMEOS))
   // Test uncaught Pass() does not have side effects, because Pass()
   // is implemented by std::move().
   // TODO(danakj): Remove this test case when we remove Pass().
@@ -416,6 +418,7 @@ TEST(ScopedPtrTest, MoveBehavior) {
     EXPECT_TRUE(rvalue);
   }
   EXPECT_EQ(0, constructed);
+#endif
 
   // Test that passing to function which does nothing does not leak.
   {

base/move.h

@@ -9,6 +9,7 @@
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
+#include "build/build_config.h"
 
 // TODO(crbug.com/566182): DEPRECATED!
 // Use DISALLOW_COPY_AND_ASSIGN instead, or if your type will be used in
@@ -30,6 +31,17 @@
 // for more details.
 // TODO(crbug.com/566182): Remove this macro and use DISALLOW_COPY_AND_ASSIGN
 // everywhere instead.
+#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
+#define DISALLOW_COPY_AND_ASSIGN_WITH_MOVE_FOR_BIND(type)       \
+ private:                                                       \
+  type(const type&) = delete;                                   \
+  void operator=(const type&) = delete;                         \
+                                                                \
+ public:                                                        \
+  typedef void MoveOnlyTypeForCPP03;                            \
+                                                                \
+ private:
+#else
 #define DISALLOW_COPY_AND_ASSIGN_WITH_MOVE_FOR_BIND(type)       \
  private:                                                       \
   type(const type&) = delete;                                   \
@@ -40,5 +52,6 @@
   typedef void MoveOnlyTypeForCPP03;                            \
                                                                 \
  private:
+#endif
 
 #endif  // BASE_MOVE_H_