Move a bunch of code in content\renderer to the content namespace.

content/renderer/renderer_accessibility_browsertest.cc

Index: content/renderer/renderer_accessibility_browsertest.cc
===================================================================
--- content/renderer/renderer_accessibility_browsertest.cc	(revision 163045)
+++ content/renderer/renderer_accessibility_browsertest.cc	(working copy)
@@ -12,9 +12,9 @@
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebSize.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
 
-using content::AccessibilityNodeData;
+namespace content {
 
-class RendererAccessibilityTest : public content::RenderViewTest {
+class RendererAccessibilityTest : public RenderViewTest {
  public:
   RendererAccessibilityTest() {}
 
@@ -23,7 +23,7 @@
   }
 
   virtual void SetUp() {
-    content::RenderViewTest::SetUp();
+    RenderViewTest::SetUp();
     sink_ = &render_thread_->sink();
   }
 
@@ -188,3 +188,5 @@
     EXPECT_EQ(notification.id, 1);
   }
 }
+
+}  // namespace content