Update uses of UTF conversions in content/ to use the base:: namespace.

content/browser/renderer_host/render_widget_host_view_aura_unittest.cc

 // Copyright (c) 2012 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 "content/browser/renderer_host/render_widget_host_view_aura.h"
 
 #include "base/basictypes.h"
 #include "base/memory/shared_memory.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 330 matching lines @@
   widget_host_ = NULL;
   view_ = NULL;
 }
 
 // Checks that IME-composition-event state is maintained correctly.
 TEST_F(RenderWidgetHostViewAuraTest, SetCompositionText) {
   view_->InitAsChild(NULL);
   view_->Show();
 
   ui::CompositionText composition_text;
-  composition_text.text = ASCIIToUTF16("|a|b");
+  composition_text.text = base::ASCIIToUTF16("|a|b");
 
   // Focused segment
   composition_text.underlines.push_back(
       ui::CompositionUnderline(0, 3, 0xff000000, true));
 
   // Non-focused segment
   composition_text.underlines.push_back(
       ui::CompositionUnderline(3, 4, 0xff000000, false));
 
   const ui::CompositionUnderlines& underlines = composition_text.underlines;
@@ skipping 849 matching lines @@
   view_->OnSwapCompositorFrame(
       1, MakeDelegatedFrame(2.f, frame_size, gfx::Rect(frame_size)));
 
   // When we get a new frame with the same frame size in physical pixels, but a
   // different scale, we should generate a new frame provider, as the final
   // result will need to be scaled differently to the screen.
   EXPECT_NE(frame_provider.get(), view_->frame_provider_.get());
 }
 
 }  // namespace content