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

content/renderer/text_input_client_observer.cc

Index: content/renderer/text_input_client_observer.cc
===================================================================
--- content/renderer/text_input_client_observer.cc	(revision 163007)
+++ content/renderer/text_input_client_observer.cc	(working copy)
@@ -7,7 +7,6 @@
 #include "base/memory/scoped_ptr.h"
 #include "content/common/text_input_client_messages.h"
 #include "content/renderer/render_view_impl.h"
-#include "ipc/ipc_message_macros.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/mac/WebSubstringUtil.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebPoint.h"
@@ -16,8 +15,10 @@
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
 #include "ui/gfx/rect.h"
 
+namespace content {
+
 TextInputClientObserver::TextInputClientObserver(RenderViewImpl* render_view)
-    : content::RenderViewObserver(render_view),
+    : RenderViewObserver(render_view),
       render_view_impl_(render_view) {
 }
 
@@ -72,3 +73,5 @@
   NOTIMPLEMENTED();
 #endif
 }
+
+}  // namespace content