Move PageTransition into content namespace. While I'm touching all these files, I've also updated...

content/browser/tab_contents/navigation_entry_unittest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/string16.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "content/browser/site_instance.h"
 #include "content/browser/tab_contents/navigation_entry.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 class NavigationEntryTest : public testing::Test {
  public:
   NavigationEntryTest() : instance_(NULL) {
   }
 
   virtual void SetUp() {
     entry1_.reset(new NavigationEntry);
 
     instance_ = SiteInstance::CreateSiteInstance(NULL);
     entry2_.reset(new NavigationEntry(instance_, 3,
                                       GURL("test:url"),
                                       GURL("from"),
                                       ASCIIToUTF16("title"),
-                                      PageTransition::TYPED));
+                                      content::PAGE_TRANSITION_TYPED));
   }
 
   virtual void TearDown() {
   }
 
  protected:
   scoped_ptr<NavigationEntry> entry1_;
   scoped_ptr<NavigationEntry> entry2_;
   // SiteInstances are deleted when their NavigationEntries are gone.
   SiteInstance* instance_;
@@ skipping 127 matching lines @@
   entry2_.get()->set_content_state("state");
   EXPECT_EQ("state", entry2_.get()->content_state());
 
   // Page ID
   EXPECT_EQ(-1, entry1_.get()->page_id());
   EXPECT_EQ(3, entry2_.get()->page_id());
   entry2_.get()->set_page_id(2);
   EXPECT_EQ(2, entry2_.get()->page_id());
 
   // Transition type
-  EXPECT_EQ(PageTransition::LINK, entry1_.get()->transition_type());
-  EXPECT_EQ(PageTransition::TYPED, entry2_.get()->transition_type());
-  entry2_.get()->set_transition_type(PageTransition::RELOAD);
-  EXPECT_EQ(PageTransition::RELOAD, entry2_.get()->transition_type());
+  EXPECT_EQ(content::PAGE_TRANSITION_LINK, entry1_.get()->transition_type());
+  EXPECT_EQ(content::PAGE_TRANSITION_TYPED, entry2_.get()->transition_type());
+  entry2_.get()->set_transition_type(content::PAGE_TRANSITION_RELOAD);
+  EXPECT_EQ(content::PAGE_TRANSITION_RELOAD, entry2_.get()->transition_type());
 
   // Post Data
   EXPECT_FALSE(entry1_.get()->has_post_data());
   EXPECT_FALSE(entry2_.get()->has_post_data());
   entry2_.get()->set_has_post_data(true);
   EXPECT_TRUE(entry2_.get()->has_post_data());
 
   // Restored
   EXPECT_EQ(NavigationEntry::RESTORE_NONE, entry1_->restore_type());
   EXPECT_EQ(NavigationEntry::RESTORE_NONE, entry2_->restore_type());
   entry2_->set_restore_type(NavigationEntry::RESTORE_LAST_SESSION);
   EXPECT_EQ(NavigationEntry::RESTORE_LAST_SESSION, entry2_->restore_type());
 }