Revert "Make it easier to test changes to a .icon file."

Reason for revert:
build errors on GN bots

LINUX:
FAILED: /mnt/data/b/build/goma/gomacc ../../third_party/llvm-build/Release+Asserts/bin/clang++ -MMD -MF obj/ui/views/examples/views_examples_lib/vector_example.o.d .....
../../ui/views/examples/vector_example.cc:112:14:error: no member named 'CreateVectorIconFromSource' in namespace 'gfx'
        gfx::CreateVectorIconFromSource(contents, size_, color_));
        ~~~~~^
1 error generated.

WIN:
[472/771] LINK generate_barcode_video.exe
FAILED: ninja -t msvc -e environment.x64 -- E:\b\build\goma/gomacc.exe "E:\b\depot_tools\win_toolchain\vs2013_files\VC\bin\amd64/cl.exe" /nologo /showIncludes /FC @obj/ui/views/examples/views_examples_lib/vector_example.obj.rsp ....
e:\b\build\slave\win_x64_gn\build\src\ui\views\examples\vector_example.cc(112) :error C2039: 'CreateVectorIconFromSource' : is not a member of 'gfx'
e:\b\build\slave\win_x64_gn\build\src\ui\views\examples\vector_example.cc(112) :error C3861: 'CreateVectorIconFromSource': identifier not found
ninja: build stopped: subcommand failed.

>   Make it easier to test changes to a .icon file.

>   No need to recompile Chrome; views_examples_exe will read from a file. This would also be useful for the tool which will allow de
>
>   Since this is potentially unsafe (could crash on the wrong inputs) and doesn't serve a purpose in Chrome itself, it's ifdef'd out
>
>   BUG=505953
>
>   Review URL: https://codereview.chromium.org/1268633002
>
>   Cr-Commit-Position: refs/heads/master@{#341667}

TBR=estade@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1264343003 .

Cr-Commit-Position: refs/heads/master@{#341673}

2 files changed, 1 insertions, 36 deletions

diff --git a/ui/views/examples/examples.gyp b/ui/views/examples/examples.gyp
index cdf8120..56ef0b3 100644
--- a/ui/views/examples/examples.gyp
+++ b/ui/views/examples/examples.gyp
@@ -28,7 +28,6 @@
         '../../..',
       ],
       'defines': [
-        'GFX_VECTOR_ICONS_UNSAFE',
         'VIEWS_EXAMPLES_IMPLEMENTATION',
       ],
       'sources': [
diff --git a/ui/views/examples/vector_example.cc b/ui/views/examples/vector_example.cc
index f563d50..4c72147 100644
--- a/ui/views/examples/vector_example.cc
+++ b/ui/views/examples/vector_example.cc
@@ -4,14 +4,10 @@
 
 #include "ui/views/examples/vector_example.h"
 
-#include "base/files/file_path.h"
-#include "base/files/file_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "ui/gfx/paint_vector_icon.h"
 #include "ui/gfx/vector_icons_public2.h"
-#include "ui/views/controls/button/blue_button.h"
-#include "ui/views/controls/button/button.h"
 #include "ui/views/controls/image_view.h"
 #include "ui/views/controls/textfield/textfield.h"
 #include "ui/views/controls/textfield/textfield_controller.h"
@@ -24,16 +20,12 @@ namespace examples {
 
 namespace {
 
-class VectorIconGallery : public View,
-                          public TextfieldController,
-                          public ButtonListener {
+class VectorIconGallery : public View, public TextfieldController {
  public:
   VectorIconGallery()
       : image_view_(new ImageView()),
         size_input_(new Textfield()),
         color_input_(new Textfield()),
-        file_chooser_(new Textfield()),
-        file_go_button_(new BlueButton(this, base::ASCIIToUTF16("Render"))),
         vector_id_(0),
         size_(32),
         color_(SK_ColorRED) {
@@ -41,16 +33,6 @@ class VectorIconGallery : public View,
     AddChildView(color_input_);
     AddChildView(image_view_);
 
-    file_chooser_->set_placeholder_text(
-        base::ASCIIToUTF16("Or enter a file to read"));
-    View* file_container = new View();
-    BoxLayout* file_box = new BoxLayout(BoxLayout::kHorizontal, 10, 10, 10);
-    file_container->SetLayoutManager(file_box);
-    file_container->AddChildView(file_chooser_);
-    file_container->AddChildView(file_go_button_);
-    file_box->SetFlexForView(file_chooser_, 1);
-    AddChildView(file_container);
-
     size_input_->set_placeholder_text(base::ASCIIToUTF16("Size in dip"));
     size_input_->set_controller(this);
     color_input_->set_placeholder_text(base::ASCIIToUTF16("Color (AARRGGBB)"));
@@ -98,20 +80,6 @@ class VectorIconGallery : public View,
     }
   }
 
-  // ButtonListener
-  void ButtonPressed(Button* sender, const ui::Event& event) override {
-    DCHECK_EQ(file_go_button_, sender);
-    std::string contents;
-#if defined(OS_POSIX)
-    base::FilePath path(base::UTF16ToUTF8(file_chooser_->text()));
-#elif defined(OS_WIN)
-    base::FilePath path(file_chooser_->text());
-#endif
-    base::ReadFileToString(path, &contents);
-    image_view_->SetImage(
-        gfx::CreateVectorIconFromSource(contents, size_, color_));
-  }
-
   void UpdateImage() {
     image_view_->SetImage(gfx::CreateVectorIcon(
         static_cast<gfx::VectorIconId>(vector_id_), size_, color_));
@@ -121,8 +89,6 @@ class VectorIconGallery : public View,
   ImageView* image_view_;
   Textfield* size_input_;
   Textfield* color_input_;
-  Textfield* file_chooser_;
-  Button* file_go_button_;
 
   int vector_id_;
   size_t size_;